2018 Open source projects that are alternatives of or similar to Java

A high-performance 100% compatible drop-in replacement of "encoding/json"

A fast JSON parser/generator for Java.

Python library to convert/serialize class instances(Objects) both flat and nested into a dictionary data structure. It's very useful in converting Python Objects into JSON format

Converter utility between XML text and Javascript object / JSON text.

Serialize / Deserialize Dart Objects to / from JSON

Easy, Fast and Lightweight Json Formatter. (Serializer and Deserializer)

HTML parsing/serialization toolset for Node.js. WHATWG HTML Living Standard (aka HTML5)-compliant.

JSON serialization framework for Nim, works from a Stream directly to any type and back. Depends only on stdlib.

Efficient CBOR and JSON (de)serialization in Scala

Extra features for Python's JSON: comments, order, numpy, pandas, datetimes, and many more! Simple but customizable.

Fast and well tested serialization framework on top of dataclasses

Exposing problems in json parsers of several programming languages.

A fast classic ASP JSON parser and encoder for easy JSON manipulation to work with the new JavaScript MV* libraries and frameworks.

Module that adds support for serialization/deserialization of Kotlin (http://kotlinlang.org) classes and data classes.

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

LoraWAN serialization/deserialization library for The Things Network

Fast, idiomatic C# implementation of Flatbuffers

The fastest JSON library in C

Lightweight JSON library written in C.

🐍 A Python lib for (de)serializing Python objects to/from JSON

Rapid YAML - a library to parse and emit YAML, and do it fast.

Efficiently produce and consume JSON API documents.

🧚 pxi (pixie) is a small, fast, and magical command-line data processor similar to jq, mlr, and awk.

JSON-LD parser and serializer plugins for RDFLib (Python 2.6+)

A correct and safe JSON parser.

A handy swift json-object serialization/deserialization library

JSON API Transformer Bundle for Symfony 2 and Symfony 3

Header-only TOML config file parser and serializer for C++17 (and later!).

Single header YAML 1.0 C++11 serializer/deserializer.

JSON AST parser

Modern way to convert python dataclasses or other objects to and from more common types like dicts or json-like structures

C++ Serialization library for JSON

Rails gem for fast jsonapi-compliant APIs.

Static JSON parsing in C++

An extremely simple, fast, efficient, cross-platform serialization format

to_json but I wrote it myself

Flexible, Fast & Compact Serialization with RPC

The Play JSON library

One of the fastest alternative JSON parser for Go that does not require schema

FlatBuffers Compiler and Library in C for C

[DEPRECATED]: Prefer Retrofit/OkHttp by Square, or Fuel for Kotlin

Simple, Fast, and Declarative Serialization Library for Ruby

A lightweight library for converting complex objects to and from simple Python datatypes.

Meta programming utilities for C++14. Merged in matt-42/lithium

Fast Go decoder for dynamic JSON

iOS Bluetooth LE framework

JavaScript HTML to JSON Parser

Type-safe YAML parser and validator.

Simple helper to parse JSON based on independent schema

jsonui is an interactive JSON explorer on your command line

Query, update and convert data structures from the command line. Comparable to jq/yq but supports JSON, TOML, YAML, XML and CSV with zero runtime dependencies.

A lightweight, clean and simple JSON implementation in Scala

Encoding, decoding, marshaling, unmarshaling, and verification of the DSON (Doge Serialized Object Notation)

C++ CSV parser

A RESTFul operations client that serializes responses and throws meaningful exceptions for >= 400 status codes.

JSONPath for Rust

playframework2 json extra module. provide convenience functions for define Format, Reads, Writes

UDT spec, reference library and related packages

EDN parser and generator that works with plain JS data, with support for TS and node streams

A lightweight C library for RDF syntax