542 Open source projects that are alternatives of or similar to Defmt

Boilerplate-free decorator-based class logging

Caterpillar is the ultimate logging system for Deno, Node.js, and Web Browsers. Log levels are implemented to the RFC standard. Log entries can be filtered and piped to various streams, including coloured output to the terminal, the browser's console, and debug files. You can even write your own transforms.

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The Swiss army knife of data examination and manipulation

Art of C++. Flag, logging, unit-test, json, go-style coroutine and more.

Professional REST API design with ASP.NET Core 3.1 WebAPI

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PHP logging library that is highly extendable and simple to use.

OpenBSM open audit implementation

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Logging framework for Haskell

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Ansible role which installs and configures Graylog

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Truly highly composable logging utility

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Web UI to viewing logs

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Python logging library to emit JSON log that can be easily indexed and searchable by logging infrastructure such as ELK, EFK, AWS Cloudwatch, GCP Stackdriver

Functional programming toolbox

WordPress plugin for logging REST API requests and responses

OpenTelemetry API and SDK for Rust

Basic logging mechanism for Node 6.10+ Lambda Functions

A readable, structured and beautiful logging for the terminal

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📗 Simple, configurable and scalable Structured Logging for Go.

print lines matching a time range

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A Python logging library with superpowers

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Ripzap - Fast and 0 allocs leveled JSON logger for Go ⚡️. Dependency free.

Python logging handlers with GELF (Graylog Extended Log Format) support

A Hangfire extension to store a log during job execution.

A collections of FREE ebooks

Generic file logger for .NET Core (FileLoggerProvider) with minimal dependencies

一个非常强大的监控日志输出框架，支持 SpringAOP 和动态字节码注入两种方式输出方法执行的监控日志，而且包含链路追踪功能，只要一个注解即可开启所有功能

A mildly opiniated modern cloud service architecture blueprint + reference implementation

Microsoft Application Insights SDK for Go

Logspout with GELF adapter

Gin middleware to use glog

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Error tracking and logging from Python to Rollbar

Mobile operating system based on FreeRTOS™ optimized for E Ink displays - developed for Mudita Pure minimalist phone

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QM model-based design tool and code generator based on UML state machines

Logur is an opinionated collection of logging best practices

Logging lib for Node.js that prints also module name and line number

Yet another logging library.

Send logs to Amazon Cloudwatch using Winston.

Like Prometheus, but for logs.

Powershell Logging Module

Easy log aggregation, indexing and searching

High-Performance Hierarchical Finite State Machine Framework

Pluggable foundation blocks for building distributed apps.

How to be low-level programmer