About

This repository is a clone of Awesome Go but with stars. All repositories are still sorted alphabetically.

Why?

Some of the viewers might be against this idea because "stars don't mean anything" or "stars != code quality". Yet stars are about numbers, and numbers talk for themselves. First of all, stars may help some newcomers who are not familiar with Go ecosystem and want to find some good framework for the first project. This list will help them to find a few popular web-frameworks, libraries or tools for a quick start. Secondly, people like me might often use a such list of projects to find something trending or they just want to find similar libraries to run benchmarks.

How?

This repository is updated every day by the script which is be run by scheduler.

Contents

• Awesome Go
  • Audio and Music
  • Authentication and OAuth
  • Bot Building
  • Build Automation
  • Command Line
  • Configuration
  • Continuous Integration
  • CSS Preprocessors
  • Data Structures
  • Database
  • Database Drivers
  • Date and Time
  • Distributed Systems
  • Dynamic DNS
  • Email
  • Embeddable Scripting Languages
  • Error Handling
  • File Handling
  • Financial
  • Forms
  • Functional
  • Game Development
  • Generation and Generics
  • Geographic
  • Go Compilers
  • Goroutines
  • GUI
  • Hardware
  • Images
  • IoT
  • Job Scheduler
  • JSON
  • Logging
  • Machine Learning
  • Messaging
  • Microsoft Office
    • Microsoft Excel
  • Miscellaneous
    • Dependency Injection
    • Project Layout
    • Strings
    • Uncategorized
  • Natural Language Processing
  • Networking
    • HTTP Clients
  • OpenGL
  • ORM
  • Package Management
  • Performance
  • Query Language
  • Resource Embedding
  • Science and Data Analysis
  • Security
  • Serialization
  • Server Applications
  • Stream Processing
  • Template Engines
  • Testing
  • Text Processing
  • Third-party APIs
  • Utilities
  • UUID
  • Validation
  • Version Control
  • Video
  • Web Frameworks
    • Middlewares
      • Actual middlewares
      • Libraries for creating HTTP middlewares
    • Routers
  • WebAssembly
  • Windows
  • XML
• Tools
  • Code Analysis
  • Editor Plugins
  • Go Generate Tools
  • Go Tools
  • Software Packages
    • DevOps Tools
    • Other Software
• Resources
  • Benchmarks
  • Conferences
  • E-Books
  • Gophers
  • Meetups
  • Style Guides
  • Twitter
  • Websites
    • Tutorials

Audio and Music

Libraries for manipulating audio.

•    789 Oto - A low-level library to play sound on multiple platforms.
•    447 PortAudio - Go bindings for the PortAudio audio I/O library.
•    334 music-theory - Music theory models in Go.
•    332 waveform - Go package capable of generating waveform images from audio streams.
•    253 portmidi - Go bindings for PortMidi.
•    180 id3v2 - ID3 decoding and encoding library for Go.
•    148 flac - Native Go FLAC encoder/decoder with support for FLAC streams.
•    138 malgo - Mini audio library.
•    137 mix - Sequence-based Go-native audio mixer for music apps.
•    119 GoAudio - Native Go Audio Processing Library.
•     82 gaad - Native Go AAC bitstream parser.
•     54 minimp3 - Lightweight MP3 decoder library.
•     28 vorbis - "Native" Go Vorbis decoder (uses CGO, but has no dependencies).
•     10 gosamplerate - libsamplerate bindings for go.

Authentication and OAuth

Libraries for implementing authentications schemes.

•   9233 jwt-go - Golang implementation of JSON Web Tokens (JWT).
•   8845 casbin - Authorization library that supports access control models like ACL, RBAC, ABAC.
•   3554 oauth2 - Successor of goauth2. Generic OAuth 2.0 package that comes with JWT, Google APIs, Compute Engine and App Engine support.
•   3103 goth - provides a simple, clean, and idiomatic way to use OAuth and OAuth2. Handles multiple providers out of the box.
•   2594 authboss - Modular authentication system for the web. It tries to remove as much boilerplate and "hard things" as possible so that each time you start a new web project in Go, you can plug it in, configure, and start building your app without having to build an authentication system each time.
•   1760 loginsrv - JWT login microservice with plugable backends such as OAuth2 (Github), htpasswd, osiam.
•   1736 go-jose - Fairly complete implementation of the JOSE working group's JSON Web Token, JSON Web Signatures, and JSON Web Encryption specs.
•   1714 go-oauth2-server - Standalone, specification-compliant, OAuth2 server written in Golang.
•   1657 osin - Golang OAuth2 server library.
•   1347 gologin - chainable handlers for login with OAuth1 and OAuth2 authentication providers.
•   1148 gorbac - provides a lightweight role-based access control (RBAC) implementation in Golang.
•    847 scs - Session Manager for HTTP servers.
•    461 paseto - Golang implementation of Platform-Agnostic Security Tokens (PASETO).
•    423 permissions2 - Library for keeping track of users, login states and permissions. Uses secure cookies and bcrypt.
•    243 jwt - Lightweight JSON Web Token (JWT) library.
•    233 jwt - Safe, simple and fast JSON Web Tokens for Go.
•    223 jeff - Simple, flexible, secure and idiomatic web session management with pluggable backends.
•    205 jwt-auth - JWT middleware for Golang http servers with many configuration options.
•    204 go-guardian - Go-Guardian is a golang library that provides a simple, clean, and idiomatic way to create powerful modern API and web authentication that supports LDAP, Basic, Bearer token and Certificate based authentication.
•    201 httpauth - HTTP Authentication middleware.
•    147 branca - Golang implementation of Branca Tokens.
•    108 session - Go session management for web servers (including support for Google App Engine - GAE).
•    107 sessionup - Simple, yet effective HTTP session management and identification package.
•     91 jwt - Clean and easy to use implementation of JSON Web Tokens (JWT).
•     86 sjwt - Simple jwt generator and parser.
•     77 rbac - Minimalistic RBAC package for Go applications.
•     58 sessions - Dead simple, highly performant, highly customizable sessions service for go http servers.
•     47 securecookie - Efficient secure cookie encoding/decoding.
•     17 otpgo - Time-Based One-Time Password (TOTP) and HMAC-Based One-Time Password (HOTP) library for Go.
•     13 go-email-normalizer - Golang library for providing a canonical representation of email address.
•     10 scope - Easily Manage OAuth2 Scopes In Go.
•      9 sessiongate-go - Go session management using the SessionGate Redis module.
•      6 cookiestxt - provides parser of cookies.txt file format.

Bot Building

Libraries for building and working with bots.

•   2869 olivia - A chatbot built with an artificial neural network.
•   2747 telegram-bot-api - Simple and clean Telegram bot client.
•   1730 telebot - Telegram bot framework written in Go.
•    663 go-chat-bot - IRC, Slack & Telegram bot written in Go.
•    580 Kelp - official trading and market-making bot for the Stellar DEX. Works out-of-the-box, written in Golang, compatible with centralized exchanges and custom trading strategies.
•    496 slacker - Easy to use framework to create Slack bots.
•    477 Golang CryptoTrading Bot - A golang implementation of a console-based trading bot for cryptocurrency exchanges.
•    301 tbot - Telegram bot server with API similar to net/http.
•    188 go-sarah - Framework to build bot for desired chat services including LINE, Slack, Gitter and more.
•    170 Tenyks - Service oriented IRC bot using Redis and JSON for messaging.
•    155 go-twitch-irc - Libary to write bots for twitch.tv chat
•    128 hanu - Framework for writing Slack bots.
•    105 go-tgbot - Pure Golang Telegram Bot API wrapper, generated from swagger file, session-based router and middleware.
•     64 margelet - Framework for building Telegram bots.
•     41 slackscot - Another framework for building Slack bots.
•     39 ephemeral-roles - A Discord bot for managing ephemeral roles based upon voice channel member presence.
•     37 govkbot - Simple Go VK bot library.
•     24 slack-bot - Ready to use Slack Bot for lazy developers: Custom commands, Jenkins, Jira, Bitbucket, Github...
•     18 micha - Go Library for Telegram bot api.
• go-joe - A general-purpose bot library inspired by Hubot but written in Go.

Build Automation

Libraries and tools helping with build automation.

•   3949 realize - Go build system with file watchers and live reload. Run, build and watch file changes with custom paths.
•   3168 Task - simple "Make" alternative.
•   1553 mmake - Modern Make.
•     90 taskctl - Concurrent task runner.
•     88 1build - Command line tool to frictionlessly manage project-specific commands.
•     53 taskflow - Create build pipelines in Go.
•     46 gaper - Builds and restarts a Go project when it crashes or some watched file changes.
• gilbert - Build system and task runner for Go projects.

Command Line

Standard CLI

Libraries for building standard or basic Command Line applications.

•  20850 cobra - Commander for modern Go CLI interactions.
•  15480 urfave/cli - Simple, fast, and fun package for building command line apps in Go (formerly codegangsta/cli).
•   3018 kingpin - Command line and flag parser supporting sub commands.
•   2028 Dnote - A simple command line notebook with multi-device sync.
•   1883 go-flags - go command line option parser.
•   1387 pflag - Drop-in replacement for Go's flag package, implementing POSIX/GNU-style --flags.
•   1295 mitchellh/cli - Go library for implementing command-line interfaces.
•   1068 go-arg - Struct-based argument parsing in Go.
•    766 liner - Go readline-like library for command-line interfaces.
•    761 complete - Write bash completions in Go + Go command bash completion.
•    725 mow.cli - Go library for building CLI applications with sophisticated flag and argument parsing and validation.
•    711 flaggy - A robust and idiomatic flags package with excellent subcommand support.
•    565 cli - Feature-rich and easy to use command-line package based on golang struct tags.
•    552 ops - Unikernel Builder/Orchestrator.
•    294 argparse - Command line argument parser inspired by Python's argparse module.
•    184 climax - Alternative CLI with "human face", in spirit of Go command.
•    150 hiboot cli - cli application framework with auto configuration and dependency injection.
•    142 commandeer - Dev-friendly CLI apps: sets up flags, defaults, and usage based on struct fields and tags.
•    130 wmenu - Easy to use menu structure for cli applications that prompts users to make choices.
•    125 sflags - Struct based flags generator for flag, urfave/cli, pflag, cobra, kingpin and other libraries.
•    115 box-cli-maker - Make Highly Customized Boxes for your CLI.
•    114 flag - Simple but powerful command line option parsing library for Go supporting subcommand.
•    106 ukautz/clif - Small command line interface framework.
•     98 job - JOB, make your short-term command as a long-term job.
•     79 cli - Simple and complete API for building command line interfaces in Go.
•     75 env - Tag-based environment configuration for structs.
•     65 cmdr - A POSIX/GNU style, getopt-like command-line UI Go library.
•     61 clîr - A Simple and Clear CLI library. Dependency free.
•     49 gocmd - Go library for building command line applications.
•     48 wlog - Simple logging interface that supports cross-platform color and concurrency.
•     41 strumt - Library to create prompt chain.
•     36 flagvar - A collection of flag argument types for Go's standard flag package.
•     32 cmd - Extends the standard flag package to support sub commands and more in idomatic way.
•     30 go-getoptions - Go option parser inspired on the flexibility of Perl’s GetOpt::Long.
•     29 argv - Go library to split command line string as arguments array using the bash syntax.
•     21 go-commander - Go library to simplify CLI workflow.
•     13 ts - Timestamp convert & compare tool.
•     13 sand - Simple API for creating interpreters and so much more.

Advanced Console UIs

Libraries for building Console Applications and Console User Interfaces.

•  10717 termui - Go terminal dashboard based on termbox-go and inspired by  14147 blessed-contrib.
•   7001 gocui - Minimalist Go library aimed at creating Console User Interfaces.
•   3987 termbox-go - Termbox is a library for creating cross-platform text-based interfaces.
•   3808 go-prompt - Library for building a powerful interactive prompt, inspired by   6931 python-prompt-toolkit.
•   1765 uiprogress - Flexible library to render progress bars in terminal applications.
•   1613 progressbar - Basic thread-safe progress bar that works in every OS.
•   1608 asciigraph - Go package to make lightweight ASCII line graph ╭┈╯ in command line apps with no other dependencies.
•   1605 termdash - Go terminal dashboard based on termbox-go and inspired by  10717 termui.
•   1273 uilive - Library for updating terminal output in realtime.
•   1221 mpb - Multi progress bar for terminal applications.
•   1061 aurora - ANSI terminal colors that supports fmt.Printf/Sprintf.
•    795 gookit/color - Terminal color rendering tool library, support 16 colors, 256 colors, RGB color rendering output, compatible with Windows.
•    610 uitable - Library to improve readability in terminal apps using tabular data.
•    515 go-colorable - Colorable writer for windows.
•    496 go-isatty - isatty for golang.
•    449 pterm - A library to beautify console output on every platform with many combinable components.
•    391 gommon/color - Style terminal text.
•    361 chalk - Intuitive package for prettifying terminal/console output.
•    288 simpletable - Simple tables in terminal with Go.
•    281 tabby - A tiny library for super simple Golang tables.
•    206 go-colortext - Go library for color output in terminals.
•    139 yacspin - Yet Another CLi Spinner package, for working with terminal spinners.
•     78 cfmt - Contextual fmt inspired by bootstrap color classes.
•     50 tabular - Print ASCII tables from command line utilities without the need to pass large sets of data to the API.
•     30 ctc - The non-invasive cross-platform terminal color library does not need to modify the Print method.
•     23 colourize - Go library for ANSI colour text in terminals.
•     20 cfmt - Simple and convenient formatted stylized output fully compatible with fmt library.
•      9 go-ataman - Go library for rendering ANSI colored text templates in terminals.
•      6 table - Small library for terminal color based tables .

Configuration

Libraries for configuration parsing.

•  15087 viper - Go configuration with fangs.
•   3662 godotenv - Go port of Ruby's dotenv library (Loads environment variables from .env).
•   3504 kelseyhightower/envconfig - Go library for managing configuration data from environment variables.
•   2414 ini - Go package to read and write INI files.
•   1812 env - Parse environment variables to Go structs (with defaults).
•    597 konfig - Composable, observable and performant config handling for Go for the distributed processing era.
•    450 koanf - Light weight, extensible library for reading config in Go applications. Built in support for JSON, TOML, YAML, env, command line.
•    344 confita - Load configuration in cascade from multiple backends into a struct.
•    253 store - Lightweight configuration manager for Go.
•    251 config - Cloud native application configuration. Bind ENV to structs in only two lines.
•    245 cleanenv - Minimalistic configuration reader (from files, ENV, and wherever you want).
•    237 config - JSON or YAML configuration wrapper with environment variables and flags parsing.
•    232 hjson - Human JSON, a configuration file format for humans. Relaxed syntax, fewer mistakes, more comments.
•    225 gookit/config - application config manage(load,get,set). support JSON, YAML, TOML, INI, HCL. multi file load, data override merge.
•    203 joshbetz/config - Small configuration library for Go that parses environment variables, JSON files, and reloads automatically on SIGHUP.
•    194 envconfig - Read your configuration from environment variables.
•    187 aconfig - Simple, useful and opinionated config loader.
•    146 gcfg - read INI-style configuration files into Go structs; supports user-defined types and subsections.
•    146 goConfig - Parses a struct as input and populates the fields of this struct with parameters from command line, environment variables and configuration file.
•    142 fig - Tiny library for reading configuration from a file and from environment variables (with validation & defaults).
•    126 config - A lightweight yet powerful config package for Go projects.
•     95 envh - Helpers to manage environment variables.
•     93 envcfg - Un-marshaling environment variables to Go structs.
•     91 onion - Layer based configuration for Go, Supports JSON, TOML, YAML, properties, etcd, env, and encryption using PGP.
•     88 xdg - Go implementation of the XDG Base Directory Specification and XDG user directories.
•     78 harvester - Harvester, a easy to use static and dynamic configuration package supportig seeding, env vars and Consul integration.
•     71 configuro - opinionated configuration loading & validation framework from ENV and Files focused towards 12-Factor compliant applications.
•     62 xdg - Cross platform package that follows the XDG Standard.
•     59 gofigure - Go application configuration made easy.
•     55 configure - Provides configuration through multiple sources, including JSON, flags and environment variables.
•     38 go-aws-ssm - Go package that fetches parameters from AWS System Manager - Parameter Store.
•     37 configuration - Library for initializing configuration structs from env variables, files, flags and 'default' tag.
•     35 gone/jconf - Modular JSON configuration. Keep you config structs along with the code they configure and delegate parsing to submodules without sacrificing full config serialization.
•     34 ingo - Flags persisted in an ini-like config file.
•     29 go-up - A simple configuration library with recursive placeholders resolution and no magic.
•     28 mini - Golang package for parsing ini-style configuration files.
•     22 hocon - Configuration library for working with the HOCON(a human-friendly JSON superset) format, supports features like environment variables, referencing other values, comments and multiple files.
•     20 genv - Read environment variables easily with dotenv support.
•     19 conflate - Library/tool to merge multiple JSON/YAML/TOML files from arbitrary URLs, validation against a JSON schema, and application of default values defined in the schema.
•     10 envconf - Configuration from environment.
•      8 go-ssm-config - Go utility for loading configuration parameters from AWS SSM (Parameter Store).
•      4 swap - Instantiate/configure structs recursively, based on build environment. (YAML, TOML, JSON and env).
•      4 typenv - Minimalistic, zero dependency, typed environment variables library.
•      3 nasermirzaei89/env - Simple useful package for read environment variables.
•      3 go-ini - A Go package that marshals and unmarshals INI-files.
•      2 gonfig - Tag-based configuration parser which loads values from different providers into typesafe struct.

Continuous Integration

Tools for help with continuous integration.

•  22674 drone - Drone is a Continuous Integration platform built on Docker, written in Go.
•   3314 CDS - Enterprise-Grade CI/CD and DevOps Automation Open Source Platform.
•    679 goveralls - Go integration for Coveralls.io continuous code coverage tracking system.
•    106 overalls - Multi-Package go project coverprofile for tools like goveralls.
•     63 duci - A simple ci server no needs domain specific languages.
•     50 gomason - Test, Build, Sign, and Publish your go binaries from a clean workspace.
•     14 roveralls - Recursive coverage testing tool.

CSS Preprocessors

Libraries for preprocessing CSS files.

•    440 gcss - Pure Go CSS Preprocessor.
•    168 go-libsass - Go wrapper to the 100% Sass compatible libsass project.

Data Structures

Generic datastructures and algorithms in Go.

•   9739 gods - Go Data Structures. Containers, Sets, Lists, Stacks, Maps, BidiMaps, Trees, HashSet etc.
•   5949 go-datastructures - Collection of useful, performant, and thread-safe data structures.
•   1864 golang-set - Thread-Safe and Non-Thread-Safe high-performance sets for Go.
•   1542 gota - Implementation of dataframes, series, and data wrangling methods for Go.
•   1333 boomfilters - Probabilistic data structures for processing continuous, unbounded streams.
•   1118 roaring - Go package implementing compressed bitsets.
•    979 willf/bloom - Go package implementing Bloom filters.
•    774 gocache - A complete Go cache library with mutiple stores (memory, memcache, redis, ...), chainable, loadable, metrics cache and more.
•    767 cuckoofilter - Cuckoo filter: a good alternative to a counting bloom filter implemented in Go.
•    739 hyperloglog - HyperLogLog implementation with Sparse, LogLog-Beta bias correction and TailCut space reduction.
•    649 bitset - Go package implementing bitsets.
•    524 trie - Trie implementation in Go.
•    482 algorithms - Algorithms and data structures.CLRS study.
•    328 go-geoindex - In-memory geo index.
•    254 gostl - Data structure and algorithm library for go, designed to provide functions similar to C++ STL.
•    253 go-edlib - Go string comparison and edit distance algorithms library (Levenshtein, LCS, Hamming, Damerau levenshtein, Jaro-Winkler, etc.) compatible with Unicode.
•    236 merkletree - Implementation of a merkle tree providing an efficient and secure verification of the contents of data structures.
•    226 hilbert - Go package for mapping values to and from space-filling curves, such as Hilbert and Peano curves.
•    224 goskiplist - Skip list implementation in Go.
•    214 ttlcache - In-memory string-interface{} cache with various time-based expiration options and callbacks.
•    203 deque - Fast ring-buffer deque (double-ended queue).
•    172 go-adaptive-radix-tree - Go implementation of Adaptive Radix Tree.
•    162 binpacker - Binary packer and unpacker helps user build custom binary stream.
•    140 skiplist - Very fast Go Skiplist implementation.
•    137 bloom - Bloom filters implemented in Go.
•    132 iter - Go implementation of C++ STL iterators and algorithms.
•    128 cuckoo-filter - Cuckoo filter: a comprehensive cuckoo filter, which is configurable and space optimized compared with other implements, and all features mentioned in original paper is available.
•    128 goconcurrentqueue - Concurrent FIFO queue.
•    125 levenshtein - Implementation to calculate levenshtein distance in Go.
•    116 ring - Go implementation of a high performance, thread safe bloom filter.
•    113 go-rquad - Region quadtrees with efficient point location and neighbour finding.
•    104 encoding - Integer Compression Libraries for Go.
•    100 bit - Golang set data structure with bonus bit-twiddling functions.
•     92 conjungo - A small, powerful and flexible merge library.
•     86 remember-go - A universal interface for caching slow database queries (backed by redis, memcached, ristretto, or in-memory).
•     72 skiplist - Skiplist implementation in Go.
•     61 go-mcache - Fast in-memory key:value store/cache library. Pointer caches.
•     59 bloom - Golang Bloom filter implementation.
•     57 levenshtein - Levenshtein distance and similarity metrics with customizable edit costs and Winkler-like bonus for common prefix.
•     52 count-min-log - Go implementation Count-Min-Log sketch: Approximately counting with approximate counters (Like Count-Min sketch but using less memory).
•     42 crunch - Go package implementing buffers for handling various datatypes easily.
•     35 nan - Zero allocation Nullable structures in one library with handy conversion functions, marshallers and unmarshallers.
•     32 concurrent-writer - Highly concurrent drop-in replacement for bufio.Writer.
•     31 hide - ID type with marshalling to/from hash to prevent sending IDs to clients.
•     29 pipeline - An implementation of pipelines with fan-in and fan-out.
•     28 goset - A useful Set collection implementation for Go.
•     23 typ - Null Types, Safe primitive type conversion and fetching value from complex structures.
•     23 deque - A highly optimized double-ended queue.
•     22 timedmap - Map with expiring key-value pairs.
•     18 dict - Python-like dictionaries (dict) for Go.
•     17 null - Nullable Go types that can be marshalled/unmarshalled to/from JSON.
•     16 go-ef - A Go implementation of the Elias-Fano encoding.
•     15 mspm - Multi-String Pattern Matching Algorithm for information retrieval.
•     13 set - Simple set data structure implementation in Go using LinkedHashMap.
•     12 cmap - a thread-safe concurrent map for go, support using interface{} as key and auto scale up shards.
•     12 ptrie - An implementation of prefix tree.
•     10 treap - Persistent, fast ordered map using tree heaps.
•      9 gofal - fractional api for Go.
•      5 parsefields - Tools for parse JSON-like logs for collecting unique fields and events.
•      3 goterator - Iterator implementation to provide map and reduce functionalities.
•      2 slices - Functions that operate on slices; like package strings but adapted to work with slices.
•      1 ordered-concurrently - Go module that processes work concurrently and returns output in a channel in the order of input.

Database

Databases implemented in Go.

•  35854 prometheus - Monitoring system and time series database.
•  27142 tidb - TiDB is a distributed SQL database. Inspired by the design of Google F1.
•  21136 influxdb - Scalable datastore for metrics, events, and real-time analytics.
•  20138 cockroach - Scalable, Geo-Replicated, Transactional Datastore.
•  15627 dgraph - Scalable, Distributed, Low Latency, High Throughput Graph Database.
•   9924 groupcache - Groupcache is a caching and cache-filling library, intended as a replacement for memcached in many cases.
•   8973 badger - Fast key-value store in Go.
•   7925 rqlite - The lightweight, distributed, relational database built on SQLite.
•   4812 go-cache - In-memory key:value store/cache (similar to Memcached) library for Go, suitable for single-machine applications.
•   4723 BigCache - Efficient key/value cache for gigabytes of data.
•   4242 bbolt - An embedded key/value database for Go.
•   4208 goleveldb - Implementation of the  23256 LevelDB key/value database in Go.
•   3938 VictoriaMetrics - fast, resource-effective and scalable open source time series database. May be used as long-term remote storage for Prometheus. Supports PromQL.
•   3555 ledisdb - Ledisdb is a high performance NoSQL like Redis based on LevelDB.
•   3160 buntdb - Fast, embeddable, in-memory key/value database for Go with custom indexing and spatial support.
•   2579 tiedot - Your NoSQL database powered by Golang.
•   1826 immudb - immudb is a lightweight, high-speed immutable database for systems and applications written in Go.
•   1565 nutsdb - Nutsdb is a simple, fast, embeddable, persistent key/value store written in pure Go. It supports fully serializable transactions and many data structures such as list, set, sorted set.
•   1482 cache2go - In-memory key:value cache which supports automatic invalidation based on timeouts.
•   1415 GCache - Cache library with support for expirable Cache, LFU, LRU and ARC.
•   1148 CovenantSQL - CovenantSQL is a SQL database on blockchain.
•   1052 fastcache - fast thread-safe inmemory cache for big number of entries. Minimizes GC overhead.
•   1017 diskv - Home-grown disk-backed key-value store.
•    799 moss - Moss is a simple LSM key-value storage engine written in 100% Go.
•    708 pogreb - Embedded key-value store for read-heavy workloads.
•    655 Bitcask - Bitcask is an embeddable, persistent and fast key-value (KV) database written in pure Go with predictable read/write performance, low latency and high throughput thanks to the bitcask on-disk layout (LSM+WAL).
•    611 eliasdb - Dependency-free, transactional graph database with REST API, phrase search and SQL-like query language.
•    390 levigo - Levigo is a Go wrapper for LevelDB.
•    285 pudge - Fast and simple key/value store written using Go's standard library.
•    206 Vasto - A distributed high-performance key-value store. On Disk. Eventual consistent. HA. Able to grow or shrink without service interruption.
•    200 Kivik - Kivik provides a common Go and GopherJS client library for CouchDB, PouchDB, and similar databases.
•    184 piladb - Lightweight RESTful database engine based on stack data structures.
•    122 Databunker - Personally identifiable information (PII) storage service built to comply with GDPR and CCPA.
•    121 Scribble - Tiny flat file JSON store.
•     98 slowpoke - Key-value store with persistence.
•     82 cache - In-memory key:value store with expiration time, 0 dependencies, <100 LoC, 100% coverage.
•     64 bcache - Eventually consistent distributed in-memory cache Go library.
•     61 unitdb - Fast timeseries database for IoT, realtime messaging applications. Access unitdb with pubsub over tcp or websocket using github.com/unit-io/unitd application.
•     53 couchcache - RESTful caching micro-service backed by Couchbase server.
•     37 clusteredBigCache - BigCache with clustering support and individual item expiration.
•     36 hare - A simple database management system that stores each table as a text file of line-delimited JSON.
•     23 Coffer - Simple ACID key-value database that supports transactions.
•     14 tempdb - Key-value store for temporary items.
•      3 ttlcache - In-memory key value storage with TTL for each record.

Database schema migration.

•   6099 migrate - Database migrations. CLI and Golang library.
•   2072 sql-migrate - Database migration tool. Allows embedding migrations into the application using go-bindata.
•   1610 goose - Database migration tool. You can manage your database's evolution by creating incremental SQL or Go scripts.
•   1045 soda - Database migration, creation, ORM, etc... for MySQL, PostgreSQL, and SQLite.
•    859 skeema - Pure-SQL schema management system for MySQL, with support for sharding and external online schema change tools.
•    576 gormigrate - Database schema migration helper for Gorm ORM.
•    112 darwin - Database schema evolution library for Go.
•    108 migrator - Dead simple Go database migration library.
•     74 go-pg-migrations - A Go package to help write migrations with go-pg/pg.
•     25 go-fixtures - Django style fixtures for Golang's excellent built-in database/sql library.
•     24 pravasan - Simple Migration tool - currently for MySQL but planning to soon support Postgres, SQLite, MongoDB, etc.
•     22 avro - Discover SQL schemas and convert them to AVRO schemas. Query SQL records into AVRO bytes.
•      7 schema - Library to embed schema migrations for database/sql-compatible databases inside your Go binaries.
•      4 go-pg-migrate - CLI-friendly package for go-pg migrations management.

Database tools.

•  11563 vitess - vitess provides servers and tools which facilitate scaling of MySQL databases for large scale web services.
•   6801 pgweb - Web-based PostgreSQL database browser.
•   5603 kingshard - kingshard is a high performance proxy for MySQL powered by Golang.
•   3996 orchestrator - MySQL replication topology manager & visualizer.
•   3388 go-mysql-elasticsearch - Sync your MySQL data into Elasticsearch automatically.
•   2896 go-mysql - Go toolset to handle MySQL protocol and replication.
•   2600 pREST - Simplify and accelerate development, ⚡ instant, realtime, high-performance on any Postgres application, existing or new.
•    579 chproxy - HTTP proxy for ClickHouse database.
•    382 pg_timetable - Advanced scheduling for PostgreSQL.
•    269 clickhouse-bulk - Collects small insterts and sends big requests to ClickHouse servers.
•    172 myreplication - MySql binary log replication listener. Supports statement and row based replication.
•    122 octillery - Go package for sharding databases ( Supports every ORM or raw SQL ).
•     52 dbbench - Database benchmarking tool with support for several databases and scripts.
•     30 datagen - A fast data generator that's multi-table aware and supports multi-row DML.
•     27 prep - Use prepared SQL statements without changing your code.
•     11 rwdb - rwdb provides read replica capability for multiple database servers setup.

SQL query builder, libraries for building and using SQL.

•   3750 Squirrel - Go library that helps you build SQL queries.
•   2718 xo - Generate idiomatic Go code for databases based on existing schema definitions or custom queries supporting PostgreSQL, MySQL, SQLite, Oracle, and Microsoft SQL Server.
•   1174 gendry - Non-invasive SQL builder and powerful data binder.
•    984 goqu - Idiomatic SQL builder and query library.
•    580 Dotsql - Go library that helps you keep sql files in one place and use them with ease.
•    524 ozzo-dbx - Powerful data retrieval methods as well as DB-agnostic query building capabilities.
•    373 jet - Framework for writing type-safe SQL queries in Go, with ability to easily convert database query result into desired arbitrary object structure.
•    273 dbq - Zero boilerplate database operations for Go.
•    219 sqrl - SQL query builder, fork of Squirrel with improved performance.
•    142 sqlingo - A lightweight DSL to build SQL in Go.
•    101 sq - Type-safe SQL builder and struct mapper for Go.
•     83 igor - Abstraction layer for PostgreSQL that supports advanced functionality and uses gorm-like syntax.
•     51 godbal - Database Abstraction Layer (dbal) for go. Support SQL builder and get result easily.
•     25 buildsqlx - Go database query builder library for PostgreSQL.
•     20 qry - Tool that generates constants from files with raw SQL queries.
•     17 sqlf - Fast SQL query builder.
•     15 gosql - SQL Query builder with better null values support.
•      7 mpath - MPTT (Modified Preorder Tree Traversal) package for SQL records - materialized path realisation.
•      0 ormlite - Lightweight package containing some ORM-like features and helpers for sqlite databases.
• hasql - Library for accessing multi-host SQL database installations.
• Squalus - Thin layer over the Go SQL package that makes it easier to perform queries.

Database Drivers

Libraries for connecting and operating databases.

• Relational Databases
  •  10626 go-sql-driver/mysql - MySQL driver for Go.
  •   6446 pq - Pure Go Postgres driver for database/sql.
  •   4691 go-sqlite3 - SQLite3 driver for go that uses database/sql.
  •   3867 pgx - PostgreSQL driver supporting features beyond those exposed by database/sql.
  •   1365 go-mssqldb - Microsoft MSSQL driver for Go.
  •    534 go-oci8 - Oracle driver for go that uses database/sql.
  •    233 godror - Oracle driver for Go, using the ODPI-C driver.
  •    141 firebirdsql - Firebird RDBMS SQL driver for Go.
  •    117 go-adodb - Microsoft ActiveX Object DataBase driver for go that uses database/sql.
  •    104 gofreetds - Microsoft MSSQL driver. Go wrapper over FreeTDS.
  •     68 avatica - Apache Avatica/Phoenix SQL driver for database/sql.
  •     45 Sqinn-Go - SQLite with pure Go.
  •     15 bgc - Datastore Connectivity for BigQuery for go.
• NoSQL Databases
  •  11026 redis - Redis client for Golang.
  •   8279 redigo - Redigo is a Go client for the Redis database.
  •   5519 mongo-go-driver - Official MongoDB driver for the Go language.
  •   1876 mgo - (unmaintained) MongoDB driver for the Go language that implements a rich and well tested selection of features under a very simple API following standard Go idioms.
  •   1555 gorethink - Go language driver for RethinkDB.
  •   1321 gomemcache - memcache client library for the Go programming language.
  •    445 qmgo - The MongoDB driver for Go. It‘s based on official MongoDB driver but easier to use like Mgo.
  •    392 redeo - Redis-protocol compatible TCP servers/services.
  •    374 neoism - Neo4j client for Golang.
  •    356 aerospike-client-go - Aerospike client in Go language.
  •    323 gocb - Official Couchbase Go SDK.
  •    310 go-couchbase - Couchbase client in Go.
  •    265 mgm - MongoDB model-based ODM for Go (based on official MongoDB driver).
  •    164 go-rejson - Golang client for redislabs' ReJSON module using Redigo golang client. Store and manipulate structs as JSON objects in redis with ease.
  •     87 godis - redis client implement by golang, inspired by jedis.
  •     76 Neo4j-GO - Neo4j REST Client in golang.
  •     69 arangolite - Lightweight golang driver for ArangoDB.
  •     44 go-pilosa - Go client library for Pilosa.
  •     30 forestdb - Go bindings for ForestDB.
  •     26 goriak - Go language driver for Riak KV.
  •     26 neo4j - Neo4j Rest API Bindings for Golang.
  •     14 xredis - Typesafe, customizable, clean & easy to use Redis client.
  •      8 godscache - A wrapper for the Google Cloud Platform Go Datastore package that adds caching using memcached.
  •      6 asc - Datastore Connectivity for Aerospike for go.
  •      2 gocosmos - REST client and standard database/sql driver for Azure Cosmos DB.
  • gocql - Go language driver for Apache Cassandra.
• Search and Analytic Databases.
  •   7460 bleve - Modern text indexing library for go.
  •   5752 elastic - Elasticsearch client for Go.
  •   5671 riot - Go Open Source, Distributed, Simple and efficient Search Engine.
  •   3202 go-elasticsearch - Official Elasticsearch client for Go.
  •    946 elastigo - Elasticsearch client library.
  •    687 elasticsql - Convert sql to elasticsearch dsl in Go.
  •     75 skizze - probabilistic data-structures service and storage.
  •     24 goes - Library to interact with Elasticsearch.
• Multiple Backends.
  •  13775 cayley - Graph database with support for multiple backends.
  •    314 gokv - Simple key-value store abstraction and implementations for Go (Redis, Consul, etcd, bbolt, BadgerDB, LevelDB, Memcached, DynamoDB, S3, PostgreSQL, MongoDB, CockroachDB and many more).
  •    147 cachego - Golang Cache component for multiple drivers.
  •     21 dsc - Datastore connectivity for SQL, NoSQL, structured files.

Date and Time

Libraries for working with dates and times.

•   2974 now - Now is a time toolkit for golang.
•   1365 dateparse - Parse date's without knowing format in advance.
•    557 carbon - Simple Time extension with a lot of util methods, ported from PHP Carbon library.
•    363 durafmt - Time duration formatting library for Go.
•    183 timeutil - Useful extensions (Timedelta, Strftime, ...) to the golang's time package.
•     93 go-persian-calendar - The implementation of the Persian (Solar Hijri) Calendar in Go (golang).
•     84 iso8601 - Efficiently parse ISO8601 date-times without regex.
•     74 timespan - For interacting with intervals of time, defined as a start time and a duration.
•     65 date - Augments Time for working with dates, date ranges, time spans, periods, and time-of-day.
•     36 feiertage - Set of functions to calculate public holidays in Germany, incl. specialization on the states of Germany (Bundesländer). Things like Easter, Pentecost, Thanksgiving...
•     32 go-sunrise - Calculate the sunrise and sunset times for a given location.
•     19 go-str2duration - Convert string to duration. Support time.Duration returned string and more.
•     18 kair - Date and Time - Golang Formatting Library.
•     11 NullTime - Nullable time.Time.
•      9 tuesday - Ruby-compatible Strftime function.
•      9 cronrange - Parses Cron-style time range expressions, checks if the given time is within any ranges.
•      7 strftime - C99-compatible strftime formatter.
•      4 go-week - An efficient package to work with ISO8601 week dates.

Distributed Systems

Packages that help with building Distributed Systems.

•  35172 raft - Go implementation of the Raft consensus protocol, by CoreOS.
•  19680 go-kit - Microservice toolkit with support for service discovery, load balancing, pluggable transports, request tracking, etc.
•  15562 go-micro - A distributed systems development framework.
•  13305 grpc-go - The Go language implementation of gRPC. HTTP/2 based RPC.
•   9816 micro - A distributed systems runtime for the cloud and beyond.
•   8997 NATS - Lightweight, high performance messaging system for microservices, IoT, and cloud native systems.
•   6765 go-zero - A web and rpc framework. It's born to ensure the stability of the busy sites with resilient design. Builtin goctl greatly improves the development productivity.
•   5506 rpcx - Distributed pluggable RPC service framework like alibaba Dubbo.
•   4410 raft - Golang implementation of the Raft consensus protocol, by HashiCorp.
•   3991 tendermint - High-performance middleware for transforming a state machine written in any programming language into a Byzantine Fault Tolerant replicated state machine using the Tendermint consensus and blockchain protocols.
•   3815 torrent - BitTorrent client package.
•   3677 KrakenD - Ultra performant API Gateway framework with middlewares.
•   3532 dragonboat - A feature complete and high performance multi-group Raft library in Go.
•   2933 glow - Easy-to-Use scalable distributed big data processing, Map-Reduce, DAG execution, all in pure Go.
•   2776 emitter-io - High performance, distributed, secure and low latency publish-subscribe platform built with MQTT, Websockets and love.
•   2766 gleam - Fast and scalable distributed map/reduce system written in pure Go and Luajit, combining Go's high concurrency with Luajit's high performance, runs standalone or distributed.
•   2021 liftbridge - Lightweight, fault-tolerant message streams for NATS.
•   1143 hprose - Very newbility RPC Library, support 25+ languages now.
•    669 ringpop-go - Scalable, fault-tolerant application-layer sharding for Go applications.
•    626 gorpc - Simple, fast and scalable RPC library for high load.
•    588 go-health - Library for enabling asynchronous dependency health checks in your service.
•    574 rain - BitTorrent client and library.
•    382 digota - grpc ecommerce microservice.
•    370 redis-lock - Simplified distributed locking implementation using Redis.
•    366 consistent - Consistent hashing with bounded loads.
•    365 go-sundheit - A library built to provide support for defining async service health checks for golang services.
•    331 sleuth - Library for master-less p2p auto-discovery and RPC between HTTP services (using   6839 ZeroMQ).
•    312 go-jump - Port of Google's "Jump" Consistent Hash function.
•    184 dht - BitTorrent Kademlia DHT implementation.
•    170 jsonrpc - JSON-RPC 2.0 HTTP client implementation.
•    165 arpc - More effective network communication, support two-way-calling, notify, broadcast.
•    143 jsonrpc - The jsonrpc package helps implement of JSON-RPC 2.0.
•     63 celeriac - Library for adding support for interacting and monitoring Celery workers, tasks and events in Go.
•     59 doublejump - A revamped Google's jump consistent hash.
•     52 dot - distributed sync using operational transformation/OT.
•     50 Semaphore - A straightforward (micro) service orchestrator.
•     48 outboxer - Outboxer is a go library that implements the outbox pattern.
•     37 flowgraph - flow-based programming package.
•     31 drmaa - Job submission library for cluster schedulers based on the DRMAA standard.
•     24 go-pdu - A decentralized identity-based social network.
•     19 go-mysql-lock - MySQL based distributed lock.
•     14 dynatomic - A library for using DynamoDB as an atomic counter.
•     11 gmsec - A Go distributed systems development framework.
•      6 consistenthash - Consistent hashing with configurable replicas.
• pglock - PostgreSQL-backed distributed locking implementation.
• dynamolock - DynamoDB-backed distributed locking implementation.
• pjrpc - Golang JSON-RPC Server-Client with Protobuf spec.
• resgate - Realtime API Gateway for building REST, real time, and RPC APIs, where all clients are synchronized seamlessly.

Dynamic DNS

Tools for updating dynamic DNS records.

•    784 GoDNS - A dynamic DNS client tool, supports DNSPod & HE.net, written in Go.
•    177 DDNS - Personal DDNS client with Digital Ocean Networking DNS as backend.
• dyndns - Background Go process to regularly and automatically check your IP Address and make updates to (one or many) Dynamic DNS records for Google domains whenever your address changes.

Email

Libraries and tools that implement email creation and sending.

•   8137 MailHog - Email and SMTP testing with web and API interface.
•   2215 hermes - Golang package that generates clean, responsive HTML e-mails.
•   1678 email - A robust and flexible email library for Go.
•   1217 go-imap - IMAP library for clients and servers.
•    710 SendGrid - SendGrid's Go library for sending email.
•    509 mailgun-go - Go library for sending mail with the Mailgun API.
•    200 Hectane - Lightweight SMTP client providing an HTTP API.
•    193 go-message - Streaming library for the Internet Message Format and mail messages.
•    189 douceur - CSS inliner for your HTML emails.
•    162 email-verifier - A Go library for email verification without sending any emails.
•    115 go-simple-mail - Very simple package to send emails with SMTP Keep Alive and two timeouts: Connect and Send.
•     74 mailchain - Send encrypted emails to blockchain addresses written in Go.
•     69 go-premailer - Inline styling for HTML mail in Go.
•     67 go-dkim - DKIM library, to sign & verify email.
•     62 smtp - SMTP server protocol state machine.
•      8 go-email-validator - Modular email validator for syntax, disposable, smtp, etc... checking.
• chasquid - SMTP server written in Go.

Embeddable Scripting Languages

Embedding other languages inside your go code.

•   3986 gopher-lua - Lua 5.1 VM and compiler written in Go.
•   2209 tengo - Bytecode compiled script language for Go.
•   2055 goja - ECMAScript 5.1(+) implementation in Go.
•   2045 go-lua - Port of the Lua 5.2 VM to pure Go.
•   1659 expr - Expression evaluation engine for Go: fast, non-Turing complete, dynamic typing, static typing.
•   1235 go-python - naive go bindings to the CPython C-API.
•   1113 anko - Scriptable interpreter written in Go.
•    784 go-php - PHP bindings for Go.
•    747 go-duktape - Duktape JavaScript engine bindings for Go.
•    720 cel-go - Fast, portable, non-Turing complete expression evaluation with gradual typing.
•    518 golua - Go bindings for Lua C API.
•    446 gisp - Simple LISP in Go.
•    297 gval - A highly customizable expression language written in Go.
•     71 gentee - Embeddable scripting programming language.
•     48 binder - Go to Lua binding library, based on   3986 gopher-lua.
•     30 purl - Perl 5.18.2 embedded in Go.
•     20 ngaro - Embeddable Ngaro VM implementation enabling scripting in Retro.
•      6 ecal - A simple embeddable scripting language which supports concurrent event processing.

Error Handling

Libraries for handling errors.

•   6660 errors - Package that provides simple error handling primitives.
•   1198 go-multierror - Go (golang) package for representing a list of errors as a single error.
•    758 eris - A better way to handle, trace, and log errors in Go. Compatible with the standard error library and github.com/pkg/errors.
•    714 errorx - A feature rich error package with stack traces, composition of errors and more.
•    646 tracerr - Golang errors with stack trace and source fragments.
•    392 errlog - Hackable package that determines responsible source code for an error (and some other fast-debugging features). Pluggable to any logger in-place.
•    201 emperror - Error handling tools and best practices for Go libraries and applications.
•     88 errors - Drop-in replacement for the standard library errors package and github.com/pkg/errors. Provides various error handling primitives.
•     22 errors - Drop-in replacement for builting Go errors. This is a minimal error handling package with custom error types, user friendly messages, Unwrap & Is. With very easy to use and straightforward helper functions.
•      6 Falcon - A Simple Yet Highly Powerful Package For Error Handling.
•      3 errors - Simple golang error handling with classification primitives.
•      2 errors - The most simple error wrapper with awesome performance and minimal memory overhead.

File Handling

Libraries for handling files and file systems.

•   3600 afero - FileSystem Abstraction System for Go.
•   2190 pdfcpu - PDF processor.
•    624 notify - File system event notification library with simple API, similar to os/signal.
•    264 copy - Copy directory recursively.
•    186 bigfile - A file transfer system, support to manage files with http api, rpc call and ftp client.
•    126 afs - Abstract File Storage (mem, scp, zip, tar, cloud: s3, gs) for Go.
•     94 vfs - A pluggable, extensible, and opinionated set of filesystem functionality for Go across a number of filesystem types such as os, S3, and GCS.
•     80 go-csv-tag - Load csv file using tag.
•     66 opc - Load Open Packaging Conventions (OPC) files for Go.
•     63 skywalker - Package to allow one to concurrently go through a filesystem with ease.
•     51 go-exiftool - Go bindings for ExifTool, the well-known library used to extract as much metadata as possible (EXIF, IPTC, ...) from files (pictures, PDF, office, ...).
•     45 tarfs - Implementation of the FileSystem interface for tar files.
•     32 checksum - Compute message digest, like MD5 and SHA256, for large files.
•     25 go-gtfs - Load gtfs files in go.
•     24 flop - File operations library which aims to mirror feature parity with GNU cp.
•     21 baraka - A library to process http file uploads easily.
•     16 gut/yos - Simple and reliable package for file operations like copy/move/diff/list on files, directories and symbolic links.
•     15 parquet - Read and write parquet files.
•     14 go-decent-copy - Copy files for humans.
•      7 todotxt - Go library for Gina Trapani's todo.txt files, supports parsing and manipulating of task lists in the   1116 todo.txt format.
• stl - Modules to read and write STL (stereolithography) files. Concurrent algorithm for reading.

Financial

Packages for accounting and finance.

•   2861 decimal - Arbitrary-precision fixed-point decimal numbers.
•    888 go-money - Implementation of Fowler's Money pattern.
•    635 accounting - money and currency formatting for golang.
•    536 go-finance - Comprehensive financial markets data in Go.
•    404 techan - Technical analysis library with advanced market analysis and trading strategies.
•    232 currency - Handles currency amounts, provides currency information and formatting.
•    181 orderbook - Matching Engine for Limit Order Book in Golang.
•     90 go-finance - Library of financial functions for time value of money (annuities), cash flow, interest rate conversions, bonds and depreciation calculations.
•     84 transaction - Embedded transactional database of accounts, running in multithreaded mode.
•     82 vat - VAT number validation & EU VAT rates.
•     81 ofxgo - Query OFX servers and/or parse the responses (with example command-line client).
•     54 go-finnhub - Client for stock market, forex and crypto data from finnhub.io. Access real-time financial market data from 60+ stock exchanges, 10 forex brokers, and 15+ crypto exchanges.
•     38 currency - High performant & accurate currency computation package.
•     31 sleet - One unified interface for multiple Payment Service Providers (PsP) to process online payment.
•     23 fastme - Fast extensible matching engine Go implementation.
•      5 go-finance - Module to fetch exchange rates, check VAT numbers via VIES and check IBAN bank account numbers.

Forms

Libraries for working with forms.

•   1131 nosurf - CSRF protection middleware for Go.
•    782 binding - Binds form and JSON data from net/http Request to struct.
•    632 gorilla/csrf - CSRF protection for Go web applications & services.
•    454 form - Decodes url.Values into Go value(s) and Encodes Go value(s) into url.Values. Dual Array and Full map support.
•    216 conform - Keeps user input in check. Trims, sanitizes & scrubs data based on struct tags.
•    160 formam - decode form's values into a struct.
•    117 forms - Framework-agnostic library for parsing and validating form/JSON data which supports multipart forms and files.
•     55 qs - Go module for encoding structs into URL query parameters.
•     25 bind - Bind form data to any Go values.
•      8 queryparam - Decode url.Values into usable struct values of standard or custom types.

Functional

Packages to support functional programming in Go.

•   1187 go-underscore - Useful collection of helpfully functional Go collection utilities.
•    165 fpGo - Monad, Functional Programming features for Golang.
•     87 fuego - Functional Experiment in Go.
•     54 gofp - A lodash like powerful utility library for Golang.

Game Development

Awesome game development libraries.

•   4147 Ebiten - dead simple 2D game library in Go.
•   3897 Leaf - Lightweight game server framework.
•   3415 Pixel - Hand-crafted 2D game library in Go.
•   1781 goworld - Scalable game server engine, featuring space-entity framework and hot-swapping.
•   1617 nano - Lightweight, facility, high performance golang based game server framework.
•   1510 go-sdl2 - Go bindings for the Simple DirectMedia Layer.
•   1362 g3n - Go 3D Game Engine.
•   1356 engo - Engo is an open-source 2D game engine written in Go. It follows the Entity-Component-System paradigm.
•   1190 termloop - Terminal-based game engine for Go, built on top of Termbox.
•   1125 gonet - Game server skeleton implemented with golang.
•    927 Pitaya - Scalable game server framework with clustering support and client libraries for iOS, Android, Unity and others through the C SDK.
•    847 Oak - Pure Go game engine.
•    578 raylib-go - Go bindings for raylib, a simple and easy-to-use library to learn videogames programming.
•    477 Azul3D - 3D game engine written in Go.
•    414 go-astar - Go implementation of the A* path finding algorithm.
•    193 go3d - Performance oriented 2D/3D math package for Go.
•     47 prototype - Cross-platform (Windows/Linux/Mac) library for creating desktop games using a minimal API.
•     18 tile - Data-oriented and cache-friendly 2D Grid library (TileMap), includes pathfinding, observers and import/export.

Generation and Generics

Tools to enhance the language with features like generics via code generation.

•   2440 go-linq - .NET LINQ-like query methods for Go.
•   1916 jennifer - Generate arbitrary Go code without templates.
•   1246 gen - Code generation tool for ‘generics’-like functionality.
•    848 goderive - Derives functions from input types.
•    464 GoWrap - Generate decorators for Go interfaces using simple templates.
•    280 interfaces - Command line tool for generating interface definitions.
•    171 go-enum - Code generation for enums from code comments.
•     97 pkgreflect - Go preprocessor for package scoped reflection.
•     47 efaceconv - Code generation tool for high performance conversion from interface{} to immutable type without allocations.
•     34 gotype - Golang source code parsing, usage like reflect package.
•     23 generis - Code generation tool providing generics, free-form macros, conditional compilation and HTML templating.
•     17 go-xray - Helpers for making the use of reflection easier.
•      9 typeregistry - A library to create type dynamically.

Geographic

Geographic tools and servers

•   7306 Tile38 - Geolocation DB with spatial index and realtime geofencing.
•   1187 S2 geometry - S2 geometry library in Go.
•    218 mbtileserver - A simple Go-based server for map tiles stored in mbtiles format.
•    153 osm - Library for reading, writing and working with OpenStreetMap data and APIs.
•    129 geocache - In-memory cache that is suitable for geolocation based applications.
•     60 WGS84 - Library for Coordinate Conversion and Transformation (ETRS89, OSGB36, NAD83, RGF93, Web Mercator, UTM).
•     48 geoserver - geoserver Is a Go Package For Manipulating a GeoServer Instance via the GeoServer REST API.
•     38 gismanager - Publish Your GIS Data(Vector Data) to PostGIS and Geoserver.
•     24 pbf - OpenStreetMap PBF golang encoder/decoder.
•     11 S2 geojson - Convert geojson to s2 cells & demonstrating some S2 geometry features on map.

Go Compilers

Tools for compiling Go to other languages.

•   9998 gopherjs - Compiler from Go to JavaScript.
•    406 tardisgo - Golang to Haxe to CPP/CSharp/Java/JavaScript transpiler.
•    252 c4go - Transpile C code to Go code.
•     23 f4go - Transpile FORTRAN 77 code to Go code.

Goroutines

Tools for managing and working with Goroutines.

•   5173 ants - A high-performance and low-cost goroutine pool in Go.
•   2526 goworker - goworker is a Go-based background worker.
•   1900 tunny - Goroutine pool for golang.
•    616 grpool - Lightweight Goroutine pool.
•    596 pool - Limited consumer goroutine or unlimited goroutine pool for easier goroutine handling and cancellation.
•    466 workerpool - Goroutine pool that limits the concurrency of task execution, not the number of tasks queued.
•    259 gowp - gowp is concurrency limiting goroutine pool.
•    187 pond - Minimalistic and High-performance goroutine worker pool written in Go.
•    184 go-floc - Orchestrate goroutines with ease.
•    158 go-flow - Control goroutines execution order.
•    109 semaphore - Fast resizable semaphore implementation based on CAS (faster than channel-based semaphore implementations).
•     98 artifex - Simple in-memory job queue for Golang using worker-based dispatching.
•     93 breaker - Flexible mechanism to make execution flow interruptible.
•     87 go-workers - Easily and safely run workers for large data processing pipelines.
•     84 semaphore - Semaphore pattern implementation with timeout of lock/unlock operations based on channel and context.
•     78 gpool - manages a resizeable pool of context-aware goroutines to bound concurrency.
•     73 worker-pool - goworker is a Go simple async worker pool.
•     73 async - A safe way to execute functions asynchronously, recovering them in case of panic.
•     69 neilotoole/errgroup - Drop-in alternative to sync/errgroup, limited to a pool of N worker goroutines.
•     61 cyclicbarrier - CyclicBarrier for golang.
•     55 threadpool - Golang threadpool implementation.
•     55 gollback - asynchronous simple function utilities, for managing execution of closures and callbacks.
•     45 Hunch - Hunch provides functions like: All, First, Retry, Waterfall etc., that makes asynchronous flow control more intuitive.
•     40 routine - go routine control with context, support: Main, Go, Pool and some useful Executors.
•     32 kyoo - Provides an unlimited job queue and concurrent worker pools.
•     29 parallel-fn - Run functions in parallel.
•     28 nursery - Structured concurrency in Go.
•     21 async - An alternative sync library for Go (Future, Promise, Locks).
•     18 goccm - Go Concurrency Manager package limits the number of goroutines that allowed to run concurrently.
•     18 stl - Software transactional locks based on Software Transactional Memory (STM) concurrency control mechanism.
•     15 go-waitgroup - Like sync.WaitGroup with error handling and concurrency control.
•     14 go-trylock - TryLock support on read-write lock for Golang.
•     13 gohive - A highly performant and easy to use Goroutine pool for Go.
•      9 queue - Gives you a sync.WaitGroup like queue group accessibility. Helps you to throttle and limit goroutines, wait for the end of the all goroutines and much more.
•      9 conexec - A concurrent toolkit to help execute funcs concurrently in an efficient and safe way. It supports specifying the overall timeout to avoid blocking and uses goroutine pool to improve efficiency.
•      8 channelify - Transform your function to return channels for easy and powerful parallel processing.
•      6 hands - A process controller used to control the execution and return strategies of multiple goroutines.
•      5 go-tools/multithreading - Manage a pool of goroutines using this lightweight library with a simple API.
•      4 concurrency-limiter - Concurrency limiter with support for timeouts , dynamic priority and context cancellation of goroutines.
• oversight - Oversight is a complete implementation of the Erlang supervision trees.

GUI

Libraries for building GUI Applications.

Toolkits

•  12598 fyne - Cross platform native GUIs designed for Go based on Material Design. Supports: Linux, macOS, Windows, BSD, iOS and Android.
•   8357 qt - Qt binding for Go (support for Windows / macOS / Linux / Android / iOS / Sailfish OS / Raspberry Pi).
•   7987 webview - Cross-platform webview window with simple two-way JavaScript bindings (Windows / macOS / Linux).
•   7820 ui - Platform-native GUI library for Go. Cross platform.
•   5294 walk - Windows application library kit for Go.
•   4494 app - Package to create apps with GO, HTML and CSS. Supports: MacOS, Windows in progress.
•   3717 go-astilectron - Build cross platform GUI apps with GO and HTML/JS/CSS (powered by Electron).
•   2018 go-sciter - Go bindings for Sciter: the Embeddable HTML/CSS/script engine for modern desktop UI development. Cross platform.
•   1427 gotk3 - Go bindings for GTK3.
•    309 gowd - Rapid and simple desktop UI development with GO, HTML, CSS and NW.js. Cross platform.
• go-gtk - Go bindings for GTK.
• Wails - Mac, Windows, Linux desktop apps with HTML UI using built-in OS HTML renderer.

Interaction

•   6516 robotgo - Go Native cross-platform GUI system automation. Control the mouse, keyboard and other.
•   1710 systray - Cross platform Go library to place an icon and menu in the notification area.
•    532 gosx-notifier - OSX Desktop Notifications library for Go.
•    203 trayhost - Cross-platform Go library to place an icon in the host operating system's taskbar.
•     16 go-appindicator - Go bindings for libappindicator3 C library.
•     10 mac-activity-tracker - OSX library to notify about any (pluggable) activity on your machine.
•      7 mac-sleep-notifier - OSX Sleep/Wake notifications in golang.

Hardware

Libraries, tools, and tutorials for interacting with hardware.

See   1137 go-hardware for a comprehensive list.

Images

Libraries for manipulating images.

•   3888 gocv - Go package for computer vision using OpenCV 3.3+.
•   3575 imaging - Simple Go image processing package.
•   3529 imaginary - Fast and simple HTTP microservice for image resizing.
•   3094 bild - Collection of image processing algorithms in pure Go.
•   2866 ln - 3D line art rendering in Go.
•   2709 gg - 2D rendering in pure Go.
•   2596 resize - Image resizing for Go with common interpolation methods.
•   1933 pt - Path tracing engine written in Go.
•   1618 svgo - Go Language Library for SVG generation.
•   1504 smartcrop - Finds good crops for arbitrary images and crop sizes.
•   1426 picfit - An image resizing server written in Go.
•   1418 gift - Package of image processing filters.
•   1394 bimg - Small package for fast and efficient image processing using libvips.
•   1269 imagick - Go binding to ImageMagick's MagickWand C API.
•   1227 go-opencv - Go bindings for OpenCV.
•   1113 geopattern - Create beautiful generative image patterns from a string.
•    927 stegify - Go tool for LSB steganography, capable of hiding any file within an image.
•    644 canvas - Vector graphics to PDF, SVG or rasterized image.
•    504 image2ascii - Convert image to ASCII.
•    483 draft - Generate High Level Microservice Architecture diagrams for GraphViz using simple YAML syntax.
•    442 govips - A lightning fast image processing and resizing library for Go.
•    420 mort - Storage and image processing server written in Go.
•    419 govatar - Library and CMD tool for generating funny avatars.
•    391 goimagehash - Go Perceptual image hashing package.
•    320 go-nude - Nudity detection with Go.
•    200 rez - Image resizing in pure Go and SIMD.
•    162 darkroom - An image proxy with changeable storage backends and image processing engines with focus on speed and resiliency.
•    136 img - Selection of image manipulation tools.
•    127 mergi - Tool & Go library for image manipulation (Merge, Crop, Resize, Watermark, Animate).
•    100 go-cairo - Go binding for the cairo graphics library.
•     93 steganography - Pure Go Library for LSB steganography.
•     89 gltf - Efficient and robust glTF 2.0 reader, writer and validator.
•     66 cameron - An avatar generator for Go.
•     52 go-gd - Go binding for GD library.
•     38 gridder - A Grid based 2D Graphics library.
•     36 goimghdr - The imghdr module determines the type of image contained in a file for Go.
•     27 tga - Package tga is a TARGA image format decoder/encoder.
•     25 go-webcolors - Port of webcolors library from Python to Go.
•      6 mpo - Decoder and conversion tool for MPO 3D Photos.
•      6 webp-server - Simple and minimal image server capable of storing, resizing, converting and caching images.

IoT (Internet of Things)

Libraries for programming devices of the IoT.

•   7060 gobot - Gobot is a framework for robotics, physical computing, and the Internet of Things.
•   1690 flogo - Project Flogo is an Open Source Framework for IoT Edge Apps & Integration.
•   1343 mainflux - Industrial IoT Messaging and Device Management Server.
•    969 gatt - Gatt is a Go package for building Bluetooth Low Energy peripherals.
•    265 connectordb - Open-Source Platform for Quantified Self & IoT.
•    240 devices - Suite of libraries for IoT devices, experimental for x/exp/io.
•    201 sensorbee - Lightweight stream processing engine for IoT.
•    175 huego - An extensive Philips Hue client library for Go.
•     50 iot - IoT is a simple framework for implementing a Google IoT Core device.
•     48 eywa - Project Eywa is essentially a connection manager that keeps track of connected devices.
• periph - Peripherals I/O to interface with low-level board facilities.

Job Scheduler

Libraries for scheduling jobs.

•    839 gron - Define time-based tasks using a simple Go API and Gron’s scheduler will run them accordingly.
•    837 JobRunner - Smart and featureful cron job scheduler with job queuing and live monitoring built in.
•    608 gocron - Easy and fluent Go job scheduling. This is an actively maintained fork of   2459 jasonlvhit/gocron.
•    479 jobs - Persistent and flexible background jobs library.
•    362 scheduler - Cronjobs scheduling made easy.
•    202 go-cron - Simple Cron library for go that can execute closures or functions at varying intervals, from once a second to once a year on a specific date and time. Primarily for web applications and long running daemons.
•    118 go-quartz - Simple, zero-dependency scheduling library for Go.
•    104 clockwerk - Go package to schedule periodic jobs using a simple, fluent syntax.
•     81 leprechaun - Job scheduler that supports webhooks, crons and classic scheduling.
•     26 clockwork - Simple and intuitive job scheduling library in Go.
•      1 cronticker - A ticker implementation to support cron schedules.

JSON

Libraries for working with JSON.

•   8035 GJSON - Get a JSON value with one line of code.
•   2338 gojson - Automatically generate Go (golang) struct definitions from example JSON.
•   1164 fastjson - Fast JSON parser and validator for Go. No custom structs, no code generation, no reflection.
•    184 kazaam - API for arbitrary transformation of JSON documents.
•    167 gojq - JSON query in Golang.
•    107 jsondiff - JSON diff library for Go based on RFC6902 (JSON Patch).
•    103 jettison - Fast and flexible JSON encoder for Go.
•     95 jsongo - Fluent API to make it easier to create Json objects.
•     87 gjo - Small utility to create JSON objects.
•     84 JayDiff - JSON diff utility written in Go.
•     76 json2go - Advanced JSON to Go struct conversion. Provides package that can parse multiple JSON documents and create struct to fit them all.
•     60 jsonf - Console tool for highlighted formatting and struct query fetching JSON.
•     55 ajson - Abstract JSON for golang with JSONPath support.
•     44 mp - Simple cli email parser. It currently takes stdin and outputs JSON.
•     41 go-respond - Go package for handling common HTTP JSON responses.
•     10 go-jsonerror - Go-JsonError is ment to allow us to easily create json response errors that follow the JsonApi spec.
•      9 jsonapi-errors - Go bindings based on the JSON API errors reference.
•      9 jsonhal - Simple Go package to make custom structs marshal into HAL compatible JSON responses.
•      6 ej - Write and read JSON from different sources succinctly.
•      6 dynjson - Client-customizable JSON formats for dynamic APIs.
•      5 epoch - Contains primitives for marshaling/unmarshaling Unix timestamp/epoch to/from build-in time.Time type in JSON.
•      4 jzon - JSON library with standard compatible API/behavior.
•      3 mapslice-json - Go MapSlice for ordered marshal/ unmarshal of maps in JSON.
•      2 jsonic - Utilities to handle and query JSON without defining structs in a type safe manner.
•      2 ask - Easy access to nested values in maps and slices. Works in combination with encoding/json and other packages that "Unmarshal" arbitrary data into Go data-types.
• JSON-to-Go - Convert JSON to Go struct.

Logging

Libraries for generating and working with log files.

•  17426 logrus - Structured logger for Go.
•  12164 zap - Fast, structured, leveled logging in Go.
•   4467 zerolog - Zero-allocation JSON logger.
•   4285 spew - Implements a deep pretty printer for Go data structures to aid in debugging.
•   2661 glog - Leveled execution logs for Go.
•   2439 lumberjack - Simple rolling logger, implements io.WriteCloser.
•   2029 tail - Go package striving to emulate the features of the BSD tail program.
•   1534 seelog - Logging functionality with flexible dispatching, filtering, and formatting.
•   1095 log - Structured logging package for Go.
•   1006 log15 - Simple, powerful logging for Go.
•    389 onelog - Onelog is a dead simple but very efficient JSON logger. It is the fastest JSON logger out there in all scenarios. Also, it is one of the logger with the lowest allocation.
•    351 phuslu/log - Structured Logging Made Easy.
•    346 logxi - 12-factor app logger that is fast and makes you happy.
•    291 logutils - Utilities for slightly better logging in Go (Golang) extending the standard logger.
•    276 log - Simple, configurable and scalable Structured Logging for Go.
•    261 go-logger - Simple logger of Go Programs, with level handlers.
•    213 httpretty - Pretty-prints your regular HTTP requests on your terminal for debugging (similar to http.DumpRequest).
•    169 rollingwriter - RollingWriter is an auto-rotate io.Writer implementation with multi policies to provide log file rotation.
•    160 sqldb-logger - A logger for Go SQL database driver without modify existing *sql.DB stdlib usage.
•    147 logger - Minimalistic logging library for Go.
•    135 xlog - Structured logger for net/context aware HTTP handlers with flexible dispatching.
•    115 ozzo-log - High performance logging supporting log severity, categorization, and filtering. Can send filtered log messages to various targets (e.g. console, network, mail).
•    111 logur - An opinionated logger interface and collection of logging best practices with adapters and integrations for well-known libraries ( 17426 logrus,  19680 go-kit log,  12164 zap,   4467 zerolog, etc).
•    106 glg - glg is simple and fast leveled logging library for Go.
•     88 log-voyage - Full-featured logging saas written in golang.
•     45 stdlog - Stdlog is an object-oriented library providing leveled logging. It is very useful for cron jobs.
•     40 go-cronowriter - Simple writer that rotate log files automatically based on current date and time, like cronolog.
•     39 gologger - Simple easy to use log lib for go, logs in Colored Console, Simple Console, File or Elasticsearch.
•     37 go-log - Log4j implementation in Go.
•     36 logex - Golang log lib, supports tracking and level, wrap by standard log lib.
•     35 gone/log - Fast, extendable, full-featured, std-lib source compatible log library.
•     28 go-log - Log lib supports level and multi handlers.
•     27 distillog - distilled levelled logging (think of it as stdlib + log levels).
•     26 logrusly -  17426 logrus plug-in to send errors to a Loggly.
•     26 journald - Go implementation of systemd Journal's native API for logging.
•     24 log - Structured log interface for Go cleanly separates logging facade from its implementation.
•     22 mlog - Simple logging module for go, with 5 levels, an optional rotating logfile feature and stdout/stderr output.
•     16 gomol - Multiple-output, structured logging for Go with extensible logging outputs.
•     15 zkits-logger - A powerful zero-dependency JSON logger.
•     13 glo - PHP Monolog inspired logging facility with identical severity levels.
•     11 go-log - Simple and configurable Logging in Go, with level, formatters and writers.
•     10 logrusiowriter - io.Writer implementation using  17426 logrus logger.
•     10 logmatic - Colorized logger for Golang with dynamic log level configuration.
•      9 logo - Golang logger to different configurable writers.
•      9 logdump - Package for multi-level logging.
•      8 go-log - A logging library with strack traces, object dumping and optional timestamps.
•      8 log - An O(1) logging system that allows you to connect one log to multiple writers (e.g. stdout, a file and a TCP connection).
•      6 xlog - Plugin architecture and flexible log system for Go, with level ctrl, multiple log target and custom log format.
•      4 kemba - A tiny debug logging tool inspired by   9446 debug, great for CLI tools and applications.

Machine Learning

Libraries for Machine Learning.

•   7726 GoLearn - General Machine Learning library for Go.
•   3915 gorgonia - graph-based computational library like Theano for Go that provides primitives for building various machine learning and neural network algorithms.
•   1672 tfgo - Easy to use Tensorflow bindings: simplifies the usage of the official Tensorflow Go bindings. Define computational graphs in Go, load and execute models trained in Python.
•   1419 gosseract - Go package for OCR (Optical Character Recognition), by using Tesseract C++ library.
•   1169 goml - On-line Machine Learning in Go.
•   1148 gorse - An offline recommender system backend based on collaborative filtering written in Go.
•    719 eaopt - An evolutionary optimization library.
•    699 bayesian - Naive Bayesian Classification for Golang.
•    681 CloudForest - Fast, flexible, multi-threaded ensembles of decision trees for machine learning in pure Go.
•    469 gobrain - Neural Networks written in go.
•    359 ocrserver - A simple OCR API server, seriously easy to be deployed by Docker and Heroku.
•    308 onnx-go - Go Interface to Open Neural Network Exchange (ONNX).
•    303 go-deep - A feature-rich neural network library in Go.
•    288 regommend - Recommendation & collaborative filtering engine.
•    183 go-galib - Genetic Algorithms library written in Go / golang.
•    170 goRecommend - Recommendation Algorithms library written in Go.
•    169 Goptuna - Bayesian optimization framework for black-box functions written in Go. Everything will be optimized.
•    137 shield - Bayesian text classifier with flexible tokenizers and storage backends for Go.
•    104 go-fann - Go bindings for Fast Artificial Neural Networks(FANN) library.
•    101 goga - Genetic algorithm library for Go.
•     67 libsvm - libsvm golang version derived work based on LIBSVM 3.14.
•     66 gonet - Neural Network for Go.
•     64 goscore - Go Scoring API for PMML.
•     62 neural-go - Multilayer perceptron network implemented in Go, with training via backpropagation.
•     58 go-pr - Pattern recognition package in Go lang.
•     58 neat - Plug-and-play, parallel Go framework for NeuroEvolution of Augmenting Topologies (NEAT).
•     52 go-featureprocessing - Fast and convenient feature processing for low latency machine leraning in Go.
•     43 fonet - A Deep Neural Network library written in Go.
•     41 golinear - liblinear bindings for Go.
•     34 Varis - Golang Neural Network.
•     28 go-cluster - Go implementation of the k-modes and k-prototypes clustering algorithms.
•     27 godist - Various probability distributions, and associated methods.
•     15 evoli - Genetic Algorithm and Particle Swarm Optimization library.
•     14 probab - Probability distribution functions. Bayesian inference. Written in pure Go.
•     10 GoMind - A simplistic Neural Network Library in Go.
•      8 randomforest - Easy to use Random Forest library for Go.
•      6 ddt - Dynamic decision tree, create trees defining customizable rules.

Messaging

Libraries that implement messaging systems.

•   6927 sarama - Go library for Apache Kafka.
•   5322 gorush - Push notification server using   2463 APNs2 and google    104 GCM.
•   5009 machinery - Asynchronous task queue/job queue based on distributed message passing.
•   4928 Centrifugo - Real-time messaging (Websockets or SockJS) server in Go.
•   3971 go-socket.io - socket.io library for golang, a realtime application framework.
•   3257 NATS Go Client - Lightweight and high performance publish-subscribe and distributed queueing messaging system - this is the Go library.
•   2912 Benthos - A message streaming bridge between a range of protocols.
•   2568 Confluent Kafka Golang Client - confluent-kafka-go is Confluent's Golang client for Apache Kafka and the Confluent Platform.
•   2463 APNs2 - HTTP/2 Apple Push Notification provider for Go — Send push notifications to iOS, tvOS, Safari and OSX apps.
•   2362 Mercure - Server and library to dispatch server-sent updates using the Mercure protocol (built on top of Server-Sent Events).
•   2089 melody - Minimalist framework for dealing with websocket sessions, includes broadcasting and automatic ping/pong handling.
•   1963 gopush-cluster - gopush-cluster is a go push server cluster.
•   1869 go-nsq - the official Go package for NSQ.
•   1238 Uniqush-Push - Redis backed unified push service for server-side notifications to mobile devices.
•   1056 Beaver - A real time messaging server to build a scalable in-app notifications, multiplayer games, chat apps in web and mobile apps.
•    934 Asynq - A simple, reliable, and efficient distributed task queue for Go built on top of Redis.
•    904 zmq4 - Go interface to ZeroMQ version 4. Also available for    131 version 3 and     18 version 2.
•    883 Gollum - A n:m multiplexer that gathers messages from different sources and broadcasts them to a set of destinations.
•    880 EventBus - The lightweight event bus with async compatibility.
•    567 dbus - Native Go bindings for D-Bus.
•    517 golongpoll - HTTP longpoll server library that makes web pub-sub simple.
•    393 emitter - Emits events using Go way, with wildcard, predicates, cancellation possibilities and many other good wins.
•    384 mangos - Pure go implementation of the Nanomsg ("Scalability Protocols") with transport interoperability.
•    365 Glue - Robust Go and Javascript Socket Library (Alternative to Socket.io).
•    340 pubsub - Simple pubsub package for go.
•    187 Bus - Minimalist message bus implementation for internal communication.
•    171 rabtap - RabbitMQ swiss army knife cli app.
•    166 messagebus - messagebus is a Go simple async message bus, perfect for using as event bus when doing event sourcing, CQRS, DDD.
•    146 guble - Messaging server using push notifications (Google Firebase Cloud Messaging, Apple Push Notification services, SMS) as well as websockets, a REST API, featuring distributed operation and message-persistence.
•    106 oplog - Generic oplog/replication system for REST APIs.
•     97 hub - A Message/Event Hub for Go applications, using publish/subscribe pattern with support for alias like rabbitMQ exchanges.
•     86 rabbus - A tiny wrapper over amqp exchanges and queues.
•     73 drone-line - Sending Line notifications using a binary, docker or Drone CI.
•     66 nsq-event-bus - A tiny wrapper around NSQ topic and channel.
•     60 RapidMQ - RapidMQ is a lightweight and reliable library for managing of the local messages queue.
•     55 go-mq - RabbitMQ client with declarative configuration.
•     54 redisqueue - redisqueue provides a producer and consumer of a queue that uses Redis streams.
•     53 Commander - A high-level event driven consumer/producer supporting various "dialects" such as Apache Kafka.
•     52 go-notify - Native implementation of the freedesktop notification spec.
•     46 go-res - Package for building REST/real-time services where clients are synchronized seamlessly, using NATS and Resgate.
•     37 event - Implementation of the pattern observer.
•     18 hare - A user friendly library for sending messages and listening to TCP sockets.
•     17 gosd - A library for scheduling when to dispatch a message to a channel.
•     16 ami - Go client to reliable queues based on Redis Cluster Streams.
•     16 go-vitotrol - Client library to Viessmann Vitotrol web service.
•     13 rmqconn - RabbitMQ Reconnection. Wrapper over amqp.Connection and amqp.Dial. Allowing to do a reconnection when the connection is broken before forcing the call to the Close () method to be closed.
•     13 jazz - A simple RabbitMQ abstraction layer for queue administration and publishing and consuming of messages.
•      9 gaurun-client - Gaurun Client written in Go.

Microsoft Office

•   2777 unioffice - Pure go library for creating and processing Office Word (.docx), Excel (.xlsx) and Powerpoint (.pptx) documents.

Microsoft Excel

Libraries for working with Microsoft Excel.

•   8235 excelize - Golang library for reading and writing Microsoft Excel™ (XLSX) files.
•   4849 xlsx - Library to simplify reading the XML format used by recent version of Microsoft Excel in Go programs.
•    132 xlsx - Fast and safe way to read/update your existing Microsoft Excel files in Go programs.
•    114 go-excel - A simple and light reader to read a relate-db-like excel as a table.
•     15 goxlsxwriter - Golang bindings for libxlsxwriter for writing XLSX (Microsoft Excel) files.

Miscellaneous

Dependency Injection

Libraries for working with dependency injection.

•   1873 fx - A dependency injection based application framework for Go (built on top of dig).
•   1819 dig - A reflection based dependency injection toolkit for Go.
•    160 container - A powerful IoC Container with fluent and easy-to-use interface.
•     97 dingo - A dependency injection toolkit for Go, based on Guice.
•     72 goioc/di - Spring-inspired Dependency Injection Container.
•     71 di - A dependency injection container for go programming language.
•     44 alice - Additive dependency injection container for Golang.
•     32 wire - Strict Runtime Dependency Injection for Golang.
•     31 linker - A reflection based dependency injection and inversion of control library with components lifecycle support.
•     14 gocontainer - Simple Dependency Injection Container.
•      3 kinit - Customizable dependency injection container with the global mode, cascade initialization and panic-safe finalization.
•      3 nject/npoint - A type safe, reflective framework based on types for libraries, tests, and endpoints.

Project Layout

Unofficial set of patterns for structuring projects.

•  21889 golang-standards/project-layout - Set of common historical and emerging project layout patterns in the Go ecosystem.
•    889 modern-go-application - Go application boilerplate and example applying modern practices.
•    437 cookiecutter-golang - A Go application boilerplate template for quick starting projects following production best practices.
•    109 golang-templates/seed - Go application GitHub repository template.
•     97 scaffold - Scaffold generates a starter Go project layout. Lets you focus on business logic implemented.
•     82 go-sample - A sample layout for Go application projects with the real code.
•     59 go-todo-backend - Go Todo Backend example using modular project layout for product microservice.
•      3 gobase - A simple skeleton for golang application with basic setup for real golang application.

Strings

Libraries for working with strings.

•    888 xstrings - Collection of useful string functions ported from other languages.
•    114 strutil - String utilities.
•     50 gobeam/Stringy - String manipulation library to convert string to camel case, snake case, kebab case / slugify etc.
• go-formatter - Implements replacement fields surrounded by curly braces {} format strings.

Uncategorized

These libraries were placed here because none of the other categories seemed to fit.

•   6081 gopsutil - Cross-platform library for retrieving process and system utilization(CPU, Memory, Disks, etc).
•   3152 archiver - Library and command for making and extracting .zip and .tar.gz archives.
•   1718 gofakeit - Random data generator written in go.
•   1324 gosms - Your own local SMS gateway in Go that can be used to send SMS.
•   1205 gatus - Automated service health dashboard.
•   1155 go-resiliency - Resiliency patterns for golang.
•   1050 base64Captcha - Base64captch supports digit, number, alphabet, arithmetic, audio and digit-alphabet captcha.
•    925 go-commons-pool - Generic object pool for Golang.
•    670 llvm - Library for interacting with LLVM IR in pure Go.
•    657 shortid - Distributed generation of super short, unique, non-sequential, URL friendly IDs.
•    413 health - Easy to use, extensible health check library.
•    377 ghorg - Quickly clone an entire org/users repositories into one directory - Supports GitHub, GitLab, and Bitbucket.
•    365 conv - Package conv provides fast and intuitive conversions across Go types.
•    334 banner - Add beautiful banners into your Go applications.
•    301 gountries - Package that exposes country and subdivision data.
•    247 stateless - A fluent library for creating state machines.
•    221 ffmt - Beautify data display for Humans.
•    198 antch - A fast, powerful and extensible web crawling & scraping framework.
•    196 lk - A simple licensing library for golang.
•    177 shoutrrr - Notification library providing easy access to various messaging services like slack, mattermost, gotify and smtp among others.
•    170 battery - Cross-platform, normalized battery information library.
•    161 healthcheck - An opinionated and concurrent health-check HTTP handler for RESTful services.
•    146 stats - Monitors Go MemStats + System stats such as Memory, Swap and CPU and sends via UDP anywhere you want for logging etc...
•    145 bitio - Highly optimized bit-level Reader and Writer for Go.
•    133 go-unarr - Decompression library for RAR, TAR, ZIP and 7z archives.
•    120 turtle - Emojis for Go.
•     92 gommit - Analyze git commit messages to ensure they follow defined patterns.
•     88 gotoprom - Type-safe metrics builder wrapper library for the official Prometheus client.
•     80 indigo - Distributed unique ID generator of using Sonyflake and encoded by Base58.
•     75 captcha - Package captcha provides an easy to use, unopinionated API for captcha generation.
•     66 morse - Library to convert to and from morse code.
•     50 pdfgen - HTTP service to generate PDF from Json requests.
•     50 persian - Some utilities for Persian language in go.
•     50 xkg - X Keyboard Grabber.
•     37 browscap_go - GoLang Library for Browser Capabilities Project.
•     36 datacounter - Go counters for readers/writer/http.ResponseWriter.
•     34 faker - Random fake data and struct generator for Go.
•     33 autoflags - Go package to automatically define command line flags from struct fields.
•     29 sandid - Every grain of sand on earth has its own ID.
•     25 url-shortener - A modern, powerful, and robust URL shortener microservice with mysql support.
•     25 gosh - Provide Go Statistics Handler, Struct, Measure Method.
•     25 xdg - FreeDesktop.org (xdg) Specs implemented in Go.
•     19 metrics - Library for metrics instrumentation and Prometheus exposition.
•     14 shellwords - A Golang library to manipulate strings according to the word parsing rules of the UNIX Bourne shell.
•     12 anagent - Minimalistic, pluggable Golang evloop/timer handler with dependency-injection.
•     10 avgRating - Calculate average score and rating based on Wilson Score Equation.
•      9 hostutils - A golang library for packing and unpacking FQDNs list.
•      4 numa - NUMA is a utility library, which is written in go. It help us to write some NUMA-AWARED code.
•      4 VarHandler - Generate boilerplate http input and output handling.
• go-openapi - Collection of packages to parse and utilize open-api schemas.

Natural Language Processing

Libraries for working with human languages.

•   2705 prose - Library for text processing that supports tokenization, part-of-speech tagging, named-entity extraction, and more. English only.
•   1596 go-i18n - Package and an accompanying tool to work with localized text.
•   1542 gse - Go efficient text segmentation; support english, chinese, japanese and other.
•   1439 gojieba - This is a Go implementation of  25748 jieba which a Chinese word splitting algorithm.
•   1113 when - Natural EN and RU language date/time parser with pluggable rules.
•    908 go-pinyin - CN Hanzi to Hanyu Pinyin converter.
•    854 spaGO - Self-contained Machine Learning and Natural Language Processing library in Go.
•    554 kagome - JP morphological analyzer written in pure Go.
•    479 whatlanggo - Natural language detection package for Go. Supports 84 languages and 24 scripts (writing systems e.g. Latin, Cyrillic, etc).
•    367 nlp - Extract values from strings and fill your structs with nlp.
•    304 nlp - Go Natural Language Processing library supporting LSA (Latent Semantic Analysis).
•    294 sentences - Sentence tokenizer: converts text into a list of sentences.
•    110 getlang - Fast natural language detection package.
•     89 go-nlp - Utilities for working with discrete probability distributions and other tools useful for doing NLP work.
•     85 go-unidecode - ASCII transliterations of Unicode text.
•     76 RAKE.go - Go port of the Rapid Automatic Keyword Extraction Algorithm (RAKE).
•     72 gounidecode - Unicode transliterator (also known as unidecode) for Go.
•     65 textcat - Go package for n-gram based text categorization, with support for utf-8 and raw text.
•     60 go-stem - Implementation of the porter stemming algorithm.
•     59 segment - Go library for performing Unicode Text Segmentation as described in Unicode Standard Annex #29
•     59 MMSEGO - This is a GO implementation of MMSEG which a Chinese word splitting algorithm.
•     50 stemmer - Stemmer packages for Go programming language. Includes English and German stemmers.
•     41 go2vec - Reader and utility functions for word2vec embeddings.
•     39 porter2 - Really fast Porter 2 stemmer.
•     33 petrovich - Petrovich is the library which inflects Russian names to given grammatical case.
•     28 snowball - Snowball stemmer port (cgo wrapper) for Go. Provides word stem extraction functionality Snowball native.
•     26 paicehusk - Golang implementation of the Paice/Husk Stemming Algorithm.
•     26 address - Handles address representation, validation and formatting.
•     25 go-mystem - CGo bindings to Yandex.Mystem - russian morphology analyzer.
•     21 iuliia-go - Transliterate Cyrillic → Latin in every possible way.
•     19 icu - Cgo binding for icu4c C library detection and conversion functions. Guaranteed compatibility with version 50.1.
•     18 golibstemmer - Go bindings for the snowball libstemmer library including porter 2.
•     17 go-localize - Simple and easy to use i18n (Internationalization and localization) engine - used for translating locale strings.
•     14 govader - Go implementation of   2874 VADER Sentiment Analysis.
•     12 shamoji - The shamoji is word filtering package written in Go.
•     10 libtextcat - Cgo binding for libtextcat C library. Guaranteed compatibility with version 2.2.
•     10 gotokenizer - A tokenizer based on the dictionary and Bigram language models for Golang. (Now only support chinese segmentation)
•      9 transliterator - Provides one-way string transliteration with supporting of language-specific transliteration rules.
•      8 porter - This is a fairly straightforward port of Martin Porter's C implementation of the Porter stemming algorithm.
•      7 detectlanguage - Language Detection API Go Client. Supports batch requests, short phrase or single word language detection.
•      5 gosentiwordnet - Sentiment analyzer using sentiwordnet lexicon in Go.

Networking

Libraries for working with various layers of the network.

•  14647 fasthttp - Package fasthttp is a fast HTTP implementation for Go, up to 10 times faster than net/http.
•  12361 kcptun - Extremely simple & fast udp tunnel based on KCP protocol.
•   6768 webrtc - A pure Go implementation of the WebRTC API.
•   5353 dns - Go library for working with DNS.
•   5030 quic-go - An implementation of the QUIC protocol in pure Go.
•   3970 gnet - gnet is a high-performance, lightweight, non-blocking, event-driven networking framework written in pure Go.
•   3969 gopacket - Go library for packet processing with libpcap bindings.
•   3662 HTTPLab - HTTPLabs let you inspect HTTP requests and forge responses.
•   2895 kcp-go - KCP - Fast and Reliable ARQ Protocol.
•   2164 gobgp - BGP implemented in the Go Programming Language.
•   1953 ssh - Higher-level API for building SSH servers (wraps crypto/ssh).
•   1817 fortio - Load testing library and command line tool, advanced echo server and web UI. Allows to specify a set query-per-second load and record latency histograms and other useful stats and graph them. Tcp, Http, gRPC.
•   1198 water - Simple TUN/TAP library.
•   1121 go-getter - Go library for downloading files or directories from various sources using a URL.
•   1082 gev - gev is a lightweight, fast non-blocking TCP network library based on Reactor mode.
•   1036 NFF-Go - Framework for rapid development of performant network functions for cloud and bare-metal (former YANFF).
•    971 sftp - Package sftp implements the SSH File Transfer Protocol as described in https://filezilla-project.org/specs/draft-ietf-secsh-filexfer-02.txt.
•    818 grab - Go package for managing file downloads.
•    785 ftp - Package ftp implements a FTP client as described in RFC 959.
•    756 mdns - Simple mDNS (Multicast DNS) client/server library in Golang.
•    707 vssh - Go library for building network and server automation over SSH protocol.
•    694 gosnmp - Native Go library for performing SNMP actions.
•    603 lhttp - Powerful websocket framework, build your IM server more easily.
•    586 cidranger - Fast IP to CIDR lookup for Go.
•    477 gotcp - Go package for quickly writing tcp applications.
•    476 peerdiscovery - Pure Go library for cross-platform local peer discovery using UDP multicast.
•    451 stun - Go implementation of RFC 5389 STUN protocol.
•    420 go-stun - Go implementation of the STUN client (RFC 3489 and RFC 5389).
•    411 gopcap - Go wrapper for libpcap.
•    386 raw - Package raw enables reading and writing data at the device driver level for a network interface.
•    350 tcp_server - Go library for building tcp servers faster.
•    292 winrm - Go WinRM client to remotely execute commands on Windows machines.
•    290 gmqtt - Gmqtt is a flexible, high-performance MQTT broker library that fully implements the MQTT protocol V3.1.1.
•    273 gaio - High performance async-io networking for Golang in proactor mode.
•    249 arp - Package arp implements the ARP protocol, as described in RFC 826.
•    242 buffstreams - Streaming protocolbuffer data over TCP made easy.
•    237 ftpserverlib - Fully featured FTP server library.
•    218 ethernet - Package ethernet implements marshaling and unmarshaling of IEEE 802.3 Ethernet II frames and IEEE 802.1Q VLAN tags.
•    173 gNxI - A collection of tools for Network Management that use the gNMI and gNOI protocols.
•    163 jazigo - Jazigo is a tool written in Go for retrieving configuration for multiple network devices.
•    157 utp - Go uTP micro transport protocol implementation.
•    143 canopus - CoAP Client/Server implementation (RFC 7252).
•    130 sslb - It's a Super Simples Load Balancer, just a little project to achieve some kind of performance.
•    116 xtcp - TCP Server Framework with simultaneous full duplex communication, graceful shutdown, and custom protocol.
•     74 nbio - High-performance, non-blocking, event-driven, easy-to-use, least-dependency networking framework written in Go.
•     69 ether - Cross-platform Go package for sending and receiving ethernet frames.
•     68 dhcp6 - Package dhcp6 implements a DHCPv6 server, as described in RFC 3315.
•     55 packet - Send packets over TCP and UDP. It can buffer messages and hot-swap connections if needed.
•     50 linkio - Network link speed simulation for Reader/Writer interfaces.
•     44 portproxy - Simple TCP proxy which adds CORS support to API's which don't support it.
•     43 iplib - Library for working with IP addresses (net.IP, net.IPNet), inspired by python ipaddress and ruby ipaddr
•     26 graval - Experimental FTP server framework.
•     24 go-powerdns - PowerDNS API bindings for Golang.
•     21 publicip - Package publicip returns your public facing IPv4 address (internet egress).
•     21 panoptes-stream - A cloud native distributed streaming network telemetry (gNMI, Juniper JTI and Cisco MDT).
•     19 golibwireshark - Package golibwireshark use libwireshark library to decode pcap file and analyse dissection data.
•     12 gohooks - GoHooks make it easy to send and consume secured web-hooks from a Go application. Inspired by Spatie's Laravel Webhook Client and Server.
•     11 llb - It's a very simple but quick backend for proxy servers. Can be useful for fast redirection to predefined domain with zero memory allocation and fast response.
•     10 goshark - Package goshark use tshark to decode IP packet and create data struct to analyse packet.
•      9 httpproxy - HTTP proxy handler and dialer.
•      9 tspool - A TCP Library use worker pool to improve performance and protect your server.
• mqttPaho - The Paho Go Client provides an MQTT client library for connection to MQTT brokers via TCP, TLS or WebSockets.

HTTP Clients

Libraries for making HTTP requests.

•   4020 resty - Simple HTTP and REST client for Go inspired by Ruby rest-client.
•   1786 heimdall - An enchanced http client with retry and hystrix capabilities.
•   1755 grequests - A Go "clone" of the great and famous Requests library.
•   1263 sling - Sling is a Go HTTP client library for creating and sending API requests.
•    886 gentleman - Full-featured plugin-driven HTTP client library.
•    543 pester - Go HTTP client calls with retries, backoff, and concurrency.
•    105 request - HTTP client for golang. If you have experience about axios or requests, you will love it. No 3rd dependency.
•     37 rq - A nicer interface for golang stdlib HTTP client.
•     16 go-http-client - Make http calls simply and easily.
•     12 httpretry - Enriches the default go HTTP client with retry functionality.

OpenGL

Libraries for using OpenGL in Go.

•   1069 glfw - Go bindings for GLFW 3.
•    786 gl - Go bindings for OpenGL (generated via glow).
•    361 mathgl - Pure Go math package specialized for 3D math, with inspiration from GLM.
•    148 goxjs/gl - Go cross-platform OpenGL bindings (OS X, Linux, Windows, browsers, iOS, Android).
•     68 goxjs/glfw - Go cross-platform glfw library for creating an OpenGL context and receiving events.
•      2 go-glmatrix - Go port of glMatrix library.

ORM

Libraries that implement Object-Relational Mapping or datamapping techniques.

•  23167 GORM - The fantastic ORM library for Golang, aims to be developer friendly.
•   6827 ent - An entity framework for Go. Simple, yet powerful ORM for modeling and querying data.
•   4483 go-pg - PostgreSQL ORM with focus on PostgreSQL specific features and performance.
•   3732 SQLBoiler - ORM generator. Generate a featureful and blazing-fast ORM tailored to your database schema.
•   3485 gorp - Go Relational Persistence, ORM-ish library for Go.
•   2498 upper.io/db - Single interface for interacting with different data sources through the use of adapters that wrap mature database drivers.
•   1103 reform - Better ORM for Go, based on non-empty interfaces and code generation.
•   1063 gormt - Mysql database to golang gorm struct.
•   1045 pop/soda - Database migration, creation, ORM, etc... for MySQL, PostgreSQL, and SQLite.
•    599 go-queryset - 100% type-safe ORM with code generation and MySQL, PostgreSQL, Sqlite3, SQL Server support based on GORM.
•    551 QBS - Stands for Query By Struct. A Go ORM.
•    540 go-sqlbuilder - A flexible and powerful SQL string builder library plus a zero-config ORM.
•    318 rel - Modern Database Access Layer for Golang - Testable, Extendable and Crafted Into a Clean and Elegant API.
•    272 Zoom - Blazing-fast datastore and querying engine built on Redis.
•    151 grimoire - Grimoire is a database access layer and validation for golang. (Support: MySQL, PostgreSQL and SQLite3).
•    141 go-sql - A easy ORM for mysql.
•    103 beego orm - Powerful orm framework for go. Support: pq/mysql/sqlite3.
•    100 go-store - Simple and fast Redis backed key-value store library for Go.
•     22 go-firestorm - A simple ORM for Google/Firebase Cloud Firestore.
•      6 lore - Simple and lightweight pseudo-ORM/pseudo-struct-mapping environment for Go.
•      5 marlow - Generated ORM from project structs for compile time safety assurances.
• XORM - Simple and powerful ORM for Go. (Support: MySQL, MyMysql, PostgreSQL, Tidb, SQLite3, MsSql and Oracle).

Package Management

Official tooling for dependency and package management

• go modules - Modules are the unit of source code interchange and versioning. The go command has direct support for working with modules, including recording and resolving dependencies on other modules.

Official experimental tooling for package management

•  13198 dep - Go dependency tool.
• vgo - Versioned Go.

Unofficial libraries for package and dependency management.

•   8088 glide - Manage your golang vendor and vendored packages with ease. Inspired by tools like Maven, Bundler, and Pip.
•   5625 godep - dependency tool for go, godep helps build packages reproducibly by fixing their dependencies.
•   5010 govendor - Go Package Manager. Go vendor tool that works with the standard vendor file.
•   2498 gopm - Go Package Manager.
•   1389 gom - Go Manager - bundle for go.
•   1199 gpm - Barebones dependency manager for Go.
•    780 goop - Simple dependency manager for Go (golang), inspired by Bundler.
•    358 modgv - Converts 'go mod graph' output into Graphviz's DOT language.
•    241 nut - Vendor Go dependencies.
•    215 johnny-deps - Minimal dependency version using Git.
•    121 VenGO - create and manage exportable isolated go virtual environments.
•    118 mvn-golang - plugin that provides way for auto-loading of Golang SDK, dependency management and start build environment in Maven project infrastructure.
•     49 gop - Build and manage your Go applications out of GOPATH.

Performance

•  13030 jaeger - A distributed tracing system.
•   1410 profile - Simple profiling support package for Go.
•   1015 statsviz - Live visualization of your Go application runtime statistics.
•    590 pixie - No instrumentation tracing for Golang applications via eBPF.
•     41 tracer - Simple, lightweight tracing.

Query Language

•   7467 graphql-go - Implementation of GraphQL for Go.
•   5687 gqlgen - go generate based graphql server library.
•   3638 graphql - GraphQL server with a focus on ease of use.
•   1632 gojsonq - A simple Go package to Query over JSON Data.
•    759 dasel - Query and update data structures using selectors from the command line. Comparable to jq/yq but supports JSON, YAML, TOML and XML with zero runtime dependencies.
•    243 jsonql - JSON query expression library in Golang.
•    190 rql - Resource Query Language for REST API.
•     52 graphql - graphql parser + utilities.
•     51 jsonslice - Jsonpath queries with advanced filters.
•     28 api-fu - Comprehensive GraphQL implementation.
•     25 straf - Easily Convert Golang structs to GraphQL objects.
•     16 rqp - Query Parser for REST API. Filtering, validations, both AND, OR operations are supported directly in the query.
•      5 jsonpath - A query library for retrieving part of JSON based on JSONPath syntax.
•      4 gws - Apollos' "GraphQL over Websocket" client and server implementation.

Resource Embedding

•   3196 packr - The simple and easy way to embed static files into Go binaries.
•   3143 statik - Embeds static files into a Go executable.
•   2178 go.rice - go.rice is a Go package that makes working with resources such as HTML, JS, CSS, images, and templates very easy.
•    923 vfsgen - Generates a vfsdata.go file that statically implements the given virtual filesystem.
•    591 esc - Embeds files into Go programs and provides http.FileSystem interfaces to them.
•    583 fileb0x - Simple tool to embed files in go with focus on "customization" and ease to use.
•    173 go-resources - Unfancy resources embedding with Go.
•     62 statics - Embeds static resources into go files for single binary compilation + works with http.FileSystem + symlinks.
•     28 go-embed - Generates go code to embed resource files into your library or executable.
•     26 templify - Embed external template files into Go code to create single file binaries.
•     15 rebed - Recreate folder structures and files from Go 1.16's embed.FS type
•      9 mule - Embed external resources like images, movies ... into Go source code to create single file binaries using go generate. Focussed on simplicity.

Science and Data Analysis

Libraries for scientific computing and data analyzing.

•   4688 gonum - Gonum is a set of numeric libraries for the Go programming language. It contains libraries for matrices, statistics, optimization, and more.
•   1930 stats - Statistics package with common functions missing from the Golang standard library.
•   1835 gonum/plot - gonum/plot provides an API for building and drawing plots in Go.
•   1561 gosl - Go scientific library for linear algebra, FFT, geometry, NURBS, numerical methods, probabilities, optimisation, differential equations, and more.
•   1314 streamtools - general purpose, graphical tool for dealing with streams of data.
•    716 go-dsp - Digital Signal Processing for Go.
•    669 chart - Simple Chart Plotting library for Go. Supports many graphs types.
•    635 goraph - Pure Go graph theory library(data structure, algorith visualization).
•    488 dataframe-go - Dataframes for machine-learning and statistics (similar to pandas).
•    431 graph - Library of basic graph algorithms.
•    378 orb - 2D geometry types with clipping, GeoJSON and Mapbox Vector Tile support.
•    323 ewma - Exponentially-weighted moving averages.
•    255 calendarheatmap - Calendar heatmap in plain Go inspired by Github contribution activity.
•    149 gohistogram - Approximate histograms for data streams.
•    125 TextRank - TextRank implementation in Golang with extendable features (summarization, weighting, phrase extraction) and multithreading (goroutine) support.
•    111 sparse - Go Sparse matrix formats for linear algebra supporting scientific and machine learning applications, compatible with gonum matrix libraries.
•     75 go-estimate - State estimation and filtering algorithms in Go.
•     68 pagerank - Weighted PageRank algorithm implemented in Go.
•     46 geom - 2D geometry for golang.
•     45 evaler - Simple floating point arithmetic expression evaluator.
•     24 goent - GO Implementation of Entropy Measures.
•     20 decimal - Package decimal implements arbitrary-precision decimal floating-point arithmetic.
•     19 triangolatte - 2D triangulation library. Allows translating lines and polygons (both based on points) to the language of GPUs.
•     15 piecewiselinear - Tiny linear interpolation library.
•     14 PiHex - Implementation of the "Bailey-Borwein-Plouffe" algorithm for the hexadecimal number Pi.
•     14 GoStats - GoStats is an Open Source GoLang library for math statistics mostly used in Machine Learning domains, it covers most of the Statistical measures functions.
•     13 ode - Ordinary differential equation (ODE) solver which supports extended states and channel-based iteration stop conditions.
•      6 assocentity - Package assocentity returns the average distance from words to a given entity.
•      5 go-gt - Graph theory algorithms written in "Go" language.
•      4 rootfinding - root-finding algorithms library for finding roots of quadratic functions.
•      4 bradleyterry - Provides a Bradley-Terry Model for pairwise comparisons.

Security

Libraries that are used to help make your application more secure.

•   4524 lego - Pure Go ACME client library and CLI tool (for use with Let's Encrypt).
•   2505 Cameradar - Tool and library to remotely hack RTSP streams from surveillance cameras.
•   1873 memguard - A pure Go library for handling sensitive values in memory.
•   1837 acmetool - ACME (Let's Encrypt) client tool with automatic renewal.
•   1630 secure - HTTP middleware for Go that facilitates some quick security wins.
•   1232 themis - high-level cryptographic library for solving typical data security tasks (secure data storage, secure messaging, zero-knowledge proof authentication), available for 14 languages, best fit for multi-platform apps.
•    726 acra - Network encryption proxy to protect database-based applications from data leaks: strong selective encryption, SQL injections prevention, intrusion detection system.
•    504 nacl - Go implementation of the NaCL set of API's.
•    304 firewalld-rest - A rest application to dynamically update firewalld rules on a linux server.
•    294 BadActor - In-memory, application-driven jailer built in the spirit of fail2ban.
•    277 ssh-vault - encrypt/decrypt using ssh keys.
•    263 optimus-go - ID hashing and Obfuscation using Knuth's Algorithm.
•    263 go-password-validator - Password validator based on raw cryptographic entropy values.
•    240 passlib - Futureproof password hashing library.
•    198 go-yara - Go Bindings for    116 YARA, the "pattern matching swiss knife for malware researchers (and everyone else)".
•    168 simple-scrypt - Scrypt package with a simple, obvious API and automatic cost calibration built-in.
•     85 argon2pw - Argon2 password hash generation with constant-time password comparison.
•     40 goSecretBoxPassword - A probably paranoid package for securely hashing and encrypting passwords.
•     20 certificates - An opinionated tool for generating tls certificates.
•     17 go-generate-password - Password generator that can be used on the cli or as a library.
•     15 secureio - An keyexchanging+authenticating+encrypting wrapper and multiplexer for io.ReadWriteCloser based on XChaCha20-poly1305, ECDH and ED25519.
•     14 goArgonPass - Argon2 password hash and verification designed to be compatible with existing Python and PHP implementations.
•     12 argon2-hashing - light wrapper around Go's argon2 package that closely mirrors with Go's standard library Bcrypt and simple-scrypt package.
•     10 sslmgr - SSL certificates made easy with a high level wrapper around acme/autocert.
• Interpol - Rule-based data generator for fuzzing and penetration testing.
• autocert - Auto provision Let's Encrypt certificates and start a TLS server.

Serialization

Libraries and tools for binary serialization.

•   9039 jsoniter - High-performance 100% compatible drop-in replacement of "encoding/json".
•   7509 goprotobuf - Go support, in the form of a library and protocol compiler plugin, for Google's protocol buffers.
•   4457 gogoprotobuf - Protocol Buffers for Go with Gadgets.
•   4293 mapstructure - Go library for decoding generic map values into native Go structures.
•   1518 go-codec - High Performance, feature-Rich, idiomatic encode, decode and rpc library for msgpack, cbor and json, with runtime-based OR code-generation support.
•    597 colfer - Code generation for the Colfer binary format.
•    501 csvutil - High Performance, idiomatic CSV record encoding and decoding to native Go structures.
•    278 go-capnproto - Cap'n Proto library and parser for go.
•    251 cbor - Small, safe, and easy CBOR encoding and decoding library.
•    145 php_session_decoder - GoLang library for working with PHP session format and PHP Serialize/Unserialize functions.
•    122 structomap - Library to easily and dynamically generate maps from static structures.
•     62 bambam - generator for Cap'n Proto schemas from go.
•     47 asn1 - Asn.1 BER and DER encoding library for golang.
•     30 binstruct - Golang binary decoder for mapping data into the structure.
•     14 fwencoder - Fixed width file parser (encoding and decoding library) for Go.
•     13 elastic - Convert slices, maps or any other unknown value across different types at run-time, no matter what.
•     13 pletter - A standard way to wrap a proto message for message brokers.
•     12 bel - Generate TypeScript interfaces from Go structs/interfaces. Useful for JSON RPC.
•      5 fixedwidth - Fixed-width text formatting (UTF-8 supported).
•      2 go-lctree - Provides a CLI and primitives to serialize and deserialize LeetCode binary trees.
•      1 unitpacking - Library to pack unit vectors into as fewest bytes as possible.

Server Applications

•  35172 etcd - Highly-available key value store for shared configuration and service discovery.
•  32751 Caddy - Caddy is an alternative, HTTP/2 web server that's easy to configure and use.
•  26559 minio - Minio is a distributed object storage server.
•   5164 RoadRunner - High-performance PHP application server, load-balancer and process manager.
•   3105 devd - Local webserver for developers.
•   2406 SFTPGo - Fully featured and highly configurable SFTP server with optional FTP/S and WebDAV support. It can serve local filesystem and Cloud Storage backends such as S3 and Google Cloud Storage.
•   1788 algernon - HTTP/2 web server with built-in support for Lua, Markdown, GCSS and Amber.
•   1504 Flagr - Flagr is an open-source feature flagging and A/B testing service.
•   1487 Fider - Fider is an open platform to collect and organize customer feedback.
•   1418 flipt - A self contained feature flag solution written in Go and Vue.js
•   1318 discovery - A registry for resilient mid-tier load balancing and failover.
•   1306 Trickster - HTTP reverse proxy cache and time series accelerator.
•    899 jackal - An XMPP server written in Go.
•    122 dudeldu - A simple SHOUTcast server.
•     50 lets-proxy2 - Reverse proxy for handle https with issue certificates in fly from lets-encrypt.
•     31 go-feature-flag - A feature flag solution, with only a YAML file in the backend (S3, GitHub, HTTP, local file ...), no server to install, just add a file in a central system and refer to it.
•     26 psql-streamer - Stream database events from PostgreSQL to Kafka.
•     20 nginx-prometheus - Nginx log parser and exporter to Prometheus.
•     13 simple-jwt-provider - Simple and lightweight provider which exhibits JWTs, supports login, password-reset (via mail) and user management.
•     12 protoxy - A proxy server that converts JSON request bodies to Protocol Buffers.
•     10 cortex-tenant - Prometheus remote write proxy that adds add Cortex tenant ID header based on metric labels.
•      8 go-proxy-cache - Simple Reverse Proxy with Caching, written in Go, using Redis.
•      0 riemann-relay - Relay to load-balance Riemann events and/or convert them to Carbon.
• consul - Consul is a tool for service discovery, monitoring and configuration.
• nsq - A realtime distributed messaging platform.

Stream Processing

Libraries and tools for stream processing and reactive programming.

•    615 go-streams - Go stream processing library.
•     78 machine - Go library for writing and generating stream workers with built in metrics and traceability.
•     28 stream - Go Stream, like Java 8 Stream: Filter/Map/FlatMap/Peek/Sorted/ForEach/Reduce...

Template Engines

Libraries and tools for templating and lexing.

•   3765 gofpdf - PDF document generator with high level support for text, drawing and images.
•   2228 sprig - Useful template functions for Go templates.
•   2013 quicktemplate - Fast, powerful, yet easy to use template engine. Converts templates into Go code and then compiles it.
•   1915 pongo2 - Django-like template-engine for Go.
•   1441 hero - Hero is a handy, fast and powerful go template engine.
•   1008 mustache - Go implementation of the Mustache template language.
•    870 amber - Amber is an elegant templating engine for Go Programming Language It is inspired from HAML and Jade.
•    798 ace - Ace is an HTML template engine for Go, inspired by Slim and Jade. Ace is a refinement of Gold.
•    772 Razor - Razor view engine for Golang.
•    756 jet - Jet template engine.
•    477 ego - Lightweight templating language that lets you write templates in Go. Templates are translated into Go and compiled.
•    471 fasttemplate - Simple and fast template engine. Substitutes template placeholders up to 10x faster than text/template.
•    418 raymond - Complete handlebars implementation in Go.
•    334 maroto - A maroto way to create PDFs. Maroto is inspired in Bootstrap and uses gofpdf. Fast and simple.
•    214 goview - Goview is a lightweight, minimalist and idiomatic template library based on golang html/template for building Go web application.
•    155 Soy - Closure templates (aka Soy templates) for Go, following the official spec.
•    117 liquid - Go implementation of Shopify Liquid templates.
•     72 velvet - Complete handlebars implementation in Go.
•     71 kasia.go - Templating system for HTML and other text documents - go implementation.
•     32 extemplate - Tiny wrapper around html/template to allow for easy file-based template inheritance.
•     24 gospin - Article spinning and spintax/spinning syntax engine, useful for A/B, testing pieces of text/articles and creating more natural conversations.
•     24 damsel - Markup language featuring html outlining via css-selectors, extensible via pkg html/template and others.

Testing

Libraries for testing codebases and generating test data.

• Testing Frameworks
  •  12789 Testify - Sacred extension to the standard go testing package.
  •   6240 GoConvey - BDD-style framework with web UI and live reload.
  •   2203 go-cmp - Package for comparing Go values in tests.
  •   1642 httpexpect - Concise, declarative, and easy to use end-to-end HTTP and REST API testing.
  •   1287 godog - Cucumber or Behat like BDD framework for Go.
  •    760 goblin - Mocha like testing framework fo Go.
  •    702 baloo - Expressive and versatile end-to-end HTTP API testing made easy.
  •    639 testfixtures - A helper for Rails' like test fixtures to test database applications.
  •    493 go-vcr - Record and replay your HTTP interactions for fast, deterministic and accurate tests.
  •    400 gnomock - integration testing with real dependencies (database, cache, even Kubernetes or AWS) running in Docker, without mocks.
  •    386 go-mutesting - Mutation testing for Go source code.
  •    365 gofight - API Handler Testing for Golang Router framework.
  •    320 goc - Goc is a comprehensive coverage testing system for The Go Programming Language.
  •    265 frisby - REST API testing framework.
  •    210 go-carpet - Tool for viewing test coverage in terminal.
  •    205 gotest.tools - A collection of packages to augment the go testing package and support common patterns.
  •    195 charlatan - Tool to generate fake interface implementations for tests.
  •    183 commander - Tool for testing cli applications on windows, linux and osx.
  •    178 endly - Declarative end to end functional testing.
  •    137 go-testdeep - Extremely flexible golang deep comparison, extends the go testing package.
  •    131 cupaloy - Simple snapshot testing addon for your test framework.
  •    125 dbcleaner - Clean database for testing purpose, inspired by database_cleaner in Ruby.
  •    114 GoSpec - BDD-style testing framework for the Go programming language.
  •    100 embedded-postgres - Run a real Postgres database locally on Linux, OSX or Windows as part of another Go application or test.
  •     83 wstest - Websocket client for unit-testing a websocket http.Handler.
  •     78 gocrest - Composable hamcrest-like matchers for Go assertions.
  •     65 testcase - Idiomatic testing framework for Behavior Driven Development.
  •     59 jsonassert - Package for verifying that your JSON payloads are serialized correctly.
  •     53 gospecify - This provides a BDD syntax for testing your Go code. It should be familiar to anybody who has used libraries such as rspec.
  •     52 restit - Go micro framework to help writing RESTful API integration test.
  •     40 gomatch - library created for testing JSON against patterns.
  •     38 dsunit - Datastore testing for SQL, NoSQL, structured files.
  •     36 covergates - Self-hosted code coverage report review and management service.
  •     29 assert - Basic Assertion Library used along side native go testing, with building blocks for custom assertions.
  •     29 go-hit - Hit is an http integration test framework written in golang.
  •     26 Hamcrest - fluent framework for declarative Matcher objects that, when applied to input values, produce self-describing results.
  •     15 flute - HTTP client testing framework.
  •     15 schema - Quick and easy expression matching for JSON schemas used in requests and responses.
  •     10 biff - Bifurcation testing framework, BDD compatible.
  •     10 testsql - Generate test data from SQL files before testing and clear it after finished.
  •     10 badio - Extensions to Go's testing/iotest package.
  •      9 gogiven - YATSPEC-like BDD testing framework for Go.
  •      9 gosuite - Brings lightweight test suites with setup/teardown facilities to testing by leveraging Go1.7's Subtests.
  •      5 stop-and-go - Testing helper for concurrency.
  •      5 Tt - Simple and colorful test tools.
  •      4 trial - Quick and easy extendable assertions without introducing much boilerplate.
  • apitest - Simple and extensible behavioural testing library for REST based services or HTTP handlers that supports mocking external http calls and rendering of sequence diagrams.
  • ginkgo - BDD Testing Framework for Go.
  • testmd - Convert markdown snippets into testable go code.
  • gocheck - More advanced testing framework alternative to gotest.
  • gomega - Rspec like matcher/assertion library.
• Mock
  •   5337 gomock - Mocking framework for the Go programming language.
  •   3380 go-sqlmock - Mock SQL driver for testing database interactions.
  •   1716 hoverfly - HTTP(S) proxy for recording and simulating REST/SOAP APIs with extensible middleware and easy-to-use CLI.
  •   1185 gock - Versatile HTTP mocking made easy.
  •   1012 httpmock - Easy mocking of HTTP responses from external resources.
  •    508 counterfeiter - Tool for generating self-contained mock objects.
  •    349 go-txdb - Single transaction based database driver mainly for testing purposes.
  •    345 minimock - Mock generator for Go interfaces.
  •     92 govcr - HTTP mock for Golang: record and replay HTTP interactions for offline testing.
  •     53 timex - A test-friendly replacement for the native time package.
  •     22 mockhttp - Mock object for Go http.ResponseWriter.
  •      9 go-localstack - Tool for using localstack in AWS testing.
  •      5 mockit - Allows functions and method easy mocking, without defining new types; it's similar to Mockito for Java.
• Fuzzing and delta-debugging/reducing/shrinking.
  •   3898 go-fuzz - Randomized testing system.
  •   1001 gofuzz - Library for populating go objects with random values.
  •    227 Tavor - Generic fuzzing and delta-debugging framework.
• Selenium and browser control tools.
  •   6024 chromedp - a way to drive/test Chrome, Safari, Edge, Android Webviews, and other browsers supporting the Chrome Debugging Protocol.
  •   1849 selenoid - alternative Selenium hub server that launches browsers within containers.
  •   1393 rod - A Devtools driver to make web automation and scraping easy.
  •    522 cdp - Type-safe bindings for the Chrome Debugging Protocol that can be used with browsers or other debug targets that implement it.
  •    272 playwright-go - browser automation library to control Chromium, Firefox and WebKit with a single API.
  •    268 ggr - a lightweight server that routes and proxies Selenium WebDriver requests to multiple Selenium hubs.
• Fail injection
  •    571 failpoint - An implementation of failpoints for Golang.

Text Processing

Libraries for parsing and manipulating texts.

• Specific Formats
  •  13347 colly - Fast and Elegant Scraping Framework for Gophers.
  •   9932 GoQuery - GoQuery brings a syntax and a set of features similar to jQuery to the Go language.
  •   4675 blackfriday - Markdown processor in Go.
  •   3581 sh - Shell parser and formatter.
  •   3443 toml - TOML configuration format (encoder/decoder with reflection).
  •   2546 go-humanize - Formatters for time, numbers, and memory size to human readable format.
  •   1795 bluemonday - HTML Sanitizer.
  •   1571 gofeed - Parse RSS and Atom feeds in Go.
  •   1311 inject - Package inject provides a reflect based injector.
  •    952 go-toml - Go library for the TOML format with query support and handy cli tools.
  •    733 commonregex - A collection of common regular expressions for Go.
  •    632 slug - URL-friendly slugify with multiple languages support.
  •    459 mxj - Encode / decode XML as JSON or map[string]interface{}; extract values with dot-notation paths and wildcards. Replaces x2j and j2x packages.
  •    457 dataflowkit - Web scraping Framework to turn websites into structured data.
  •    416 gographviz - Parses the Graphviz DOT language.
  •    391 gommon/bytes - Format bytes to string.
  •    341 go-runewidth - Functions to get fixed width of the character or string.
  •    338 htmlquery - An XPath query package for HTML, lets you extract data or evaluate from HTML documents by an XPath expression.
  •    292 gotext - GNU gettext utilities for Go.
  •    192 goq - Declarative unmarshaling of HTML using struct tags with jQuery syntax (uses GoQuery).
  •    190 goribot - A simple golang spider/scraping framework,build a spider in 3 lines.
  •    155 html-to-markdown - Convert HTML to Markdown. Even works with entire websites and can be extended through rules.
  •    148 omniparser - A versatile ETL library that parses text input (CSV/txt/JSON/XML/EDI/X12/EDIFACT/etc) in streaming fashion and transforms data into JSON output using data-driven schema.
  •    142 go-nmea - NMEA parser library for the Go language.
  •    109 sdp - SDP: Session Description Protocol [RFC 4566].
  •     93 go-zero-width - Zero-width character detection and removal for Go.
  •     91 podcast - iTunes Compliant and RSS 2.0 Podcast Generator in Golang
  •     82 editorconfig-core-go - Editorconfig file parser and manipulator for Go.
  •     67 align - A general purpose application that aligns text.
  •     65 go-slugify - Make pretty slug with multiple languages support.
  •     60 genex - Count and expand Regular Expressions into all matching Strings.
  •     55 go-vcard - Parse and format vCard.
  •     53 goregen - Library for generating random strings from regular expressions.
  •     52 go-fixedwidth - Fixed-width text formatting (encoder/decoder with reflection).
  •     51 guesslanguage - Functions to determine the natural language of a unicode text.
  •     48 allot - Placeholder and wildcard text parsing for CLI tools and bots.
  •     48 did - DID (Decentralized Identifiers) Parser and Stringer in Go.
  •     33 gonameparts - Parses human names into individual name parts.
  •     30 pagser - Pagser is a simple, extensible, configurable parse and deserialize html page to struct based on goquery and struct tags for golang crawler.
  •     27 Slugify - Go slugify application that handles string.
  •     17 codetree - Parses indented code (python, pixy, scarlet, etc.) and returns a tree structure.
  •     11 enca - Minimal cgo bindings for libenca.
  •      7 syndfeed - A syndication feed for Atom 1.0 and RSS 2.0.
  •      6 bbConvert - Converts bbCode to HTML that allows you to add support for custom bbCode tags.
  •      6 doi - Document object identifier (doi) parser in Go.
  •      5 ltsv - High performance LTSV (Labeled Tab Separated Value) reader for Go.
  •      3 encdec - Package provides a generic interface to encoders and decodersa.
  • github_flavored_markdown - GitHub Flavored Markdown renderer (using blackfriday) with fenced code block highlighting, clickable header anchor links.
• Utility
  •    767 xurls - Extract urls from text.
  •    260 gotabulate - Easily pretty-print your tabular data with Go.
  •    169 radix - fast string sorting algorithm.
  •     75 regroup - Match regex expression named groups into go struct using struct tags and automatic parsing.
  •     39 parth - URL path segmentation parsing.
  •     31 gofuckyourself - A sanitization-based swear filter for Go.
  •     20 xj2go - Convert xml or json to go struct.
  •     16 kace - Common case conversions covering common initialisms.
  •     14 Tagify - Produces a set of tags from given source.
  •      9 TySug - Alternative suggestions with respect to keyboard layouts.
  •      8 parseargs-go - string argument parser that understands quotes and backslashes.
  •      2 textwrap - Implementation of textwrap module from Python.