Open source logging projects
Every project in the registry tagged logging, ranked by real GitHub adoption.
Cost-effective log aggregation that indexes labels, not full text
Distributed tracing, metrics, logs, and GenAI monitoring in one
Sends your logs to files, sockets, inboxes, databases and various web services
An opinionated GoLang framework for accelerated microservice development. Built in support for databases and observability.
Centralize, transform, and stash your data
Realtime log viewer for containers. Supports Docker, Swarm and K8s.
A fast & simple, yet powerful & flexible logging framework for macOS, iOS, tvOS, watchOS and visionOS
A powerful framework for faster, easier, and more efficient project development.
A tiny JavaScript debugging utility modelled after Node.js core's debugging technique. Works in Node.js and web browsers
Log file navigator
A debugging and profiling tool that can trace and visualize python code execution
Network logger for Apple platforms
Application level tracing for Rust.
Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more.
Fast persistent recoverable log and key-value store + cache, in C# and C++.
OpenTelemetry Go API and SDK
NLog - Flexible and Structured Logging for various .NET Platforms
Clockwork - php dev tools in your browser - server-side component
⎈ Multi pod and container log tailing for Kubernetes -- Friendly fork of https://github.com/wercker/stern
An ultra-lightweight(ROM<1.6K, RAM<0.3k), high-performance C/C++ log library. | 一款超轻量级(ROM<1.6K, RAM<0.3k)、高性能的 C/C++ 日志库
Powerful observability made simple for developers
Main repository for Datadog Agent
Record the change log from models in Laravel
Eliot: the logging system that tells you *why* it happened
Related tags
Frequently asked questions
How many open source logging projects are there?
This registry tracks 24 projects tagged logging, with 251,016 GitHub stars between them. The most-adopted is Grafana Loki at 28,909 stars.
Are these logging projects free to use?
Yes — 23 of the 24 carry an explicit open-source licence across 5 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which logging project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these logging projects still maintained?
21 of the 24 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.