Open source log projects

Every project in the registry tagged log, ranked by real GitHub adoption.

projects 13 combined stars ★ 108K refresh nightly
01 SigNoz ★ 33K

Open-source observability platform for cloud-native apps

last push14 hours ago languageTypeScript license—
02 Matomo ★ 22K

Empower your digital strategy with actionable insights

last push14 hours ago languagePHP licenseGPL-3.0
03 dozzle ★ 15K

Realtime log viewer for containers. Supports Docker, Swarm and K8s.

last push15 hours ago languageGo licenseMIT
04 CocoaLumberjack ★ 13K

A fast & simple, yet powerful & flexible logging framework for macOS, iOS, tvOS, watchOS and visionOS

last push5 days ago languageObjective-C licenseBSD-3-Clause
05 laravel-activitylog ★ 5.9K

Log activity inside your Laravel app

last push8 days ago languagePHP licenseMIT
06 EasyLogger ★ 4.8K

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

last push3 months ago languageC licenseMIT
07 hl ★ 3.3K

A fast and powerful log viewer and processor that converts JSON logs or logfmt logs into a clear human-readable format.

last push14 hours ago languageRust licenseMIT
08 plog ★ 2.6K

Portable, simple and extensible C++ logging library

last push27 days ago languageC++ licenseMIT
09 DebugSwift ★ 2.4K

A toolkit to make debugging iOS applications easier 🚀

last push13 days ago languageSwift licenseMIT
10 loongcollector ★ 2.2K

Fast and Lightweight Observability Data Collector

last push15 hours ago languageC++ licenseApache-2.0
11 logtape ★ 2.0K

Unobtrusive logging library with zero dependencies for Deno, Node.js, Bun, browsers, and edge functions

last push14 days ago languageTypeScript licenseMIT
12 clickvisual ★ 1.6K

A lightweight log analytic and data visualize platform built on clickhouse.

last push4 days ago languageGo licenseMIT
13 loglayer ★ 550

A modern logging library for Javascript / Typescript that routes logs to various logging libraries, cloud providers, files, StatsD, and OpenTelemetry while prov

last push33 hours ago languageTypeScript licenseMIT

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Frequently asked questions

How many open source log projects are there?

This registry tracks 13 projects tagged log, with 108,093 GitHub stars between them. The most-adopted is SigNoz at 32,501 stars.

Are these log projects free to use?

Yes — 12 of the 13 carry an explicit open-source licence across 4 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 log 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 log projects still maintained?

13 of the 13 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.