Open-source alternatives to Logster

Minimalistic logging library for Go.

Lightweight logger with a simple pass-through configuration for use with fancier logging libraries. Used by the Sails framework. Optional support for colorized output, custom prefixes, and log levels (using npm's logging conventions.)

A logging framework for Erlang/OTP

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.

The all-plugins-included package of the Bunyan distributed and pluggable logging system.

Colorful CLI logger

io.Writer implementation using logrus logger managed by soy-programador

Cabin is the best self-hosted JavaScript and Node.js logging service . Supports Node v18+, Browser Environments, Express , Koa , and Lad Cabin is compatible with Sentry , Airbrake , Papertrail , Loggly , and Bugsnag .

An golang log lib, supports tracking and level, wrap by standard log lib

Seelog is a native Go logging library that provides flexible asynchronous dispatching, filtering, and formatting.

A tiny debug logging tool. Ideal for CLI tools and command applications. Inspired by https://github.com/visionmedia/debug

MStore is a experimental metric store build in erlang, the primary functions are open, new, get and put.

go-spew is a deep inspection library and debugging utility for Go. It functions as a data structure pretty printer that renders complex, nested types into human-readable strings with indentation and type information. The library provides specialized capabilities for visualizing internal program states, including the ability to dump data structures with pointer addresses and map keys. It includes a configuration system to adjust printing behavior, such as limiting recursion depth and setting indentation. The tool uses reflection-based type inspection and recursive tree traversal to handle nes

This project is a JavaScript logging utility and namespace-based debugger used for printing formatted, color-coded debug messages to the console in Node.js, web browsers, and Deno. It serves as a console output formatter and execution time profiler to help identify bugs and track program flow. The system manages debug visibility through named namespaces, allowing specific groups of messages to be enabled or disabled via environment variables. It distinguishes different modules in the output stream by assigning specific colors to these namespaces. The utility includes capabilities for measuri

Loguru is a Python logging library and thread-safe framework designed for recording system events and diagnostic messages. It functions as a structured logging tool that can serialize messages into JSON strings with metadata for automated parsing and analysis. The library includes a specialized exception tracker that captures unhandled crashes across main and background threads, rendering detailed stack traces that include local variable values. It further distinguishes itself through a unified routing pipeline that can intercept messages from the standard library logging module and dispatch

Timberjack is a Go log rolling library with support for size-based, time-based, and manual rotation.

Elixir logger to publish log messages in RabbitMQ

Simple Logging Facade for Golang

A powerful zero-dependency json logger.

Exception tracking and logging from Elixir to Rollbar

Package for multi-level logging

:memo: Logging with multiple output targets.