Open source logger projects

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

projects 5 combined stars ★ 53K refresh nightly
01 monolog ★ 21K

Sends your logs to files, sockets, inboxes, databases and various web services

last push8 days ago languagePHP licenseMIT
02 CocoaLumberjack ★ 13K

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

last push40 hours ago languageObjective-C licenseBSD-3-Clause
03 Pulse ★ 7.2K

Network logger for Apple platforms

last push1 months ago languageSwift licenseMIT
04 NLog ★ 6.5K

NLog - Flexible and Structured Logging for various .NET Platforms

last push30 hours ago languageC# licenseBSD-3-Clause
05 EasyLogger ★ 4.7K

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 push1 months ago languageC licenseMIT

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Frequently asked questions

How many open source logger projects are there?

This registry tracks 5 projects tagged logger, with 53,237 GitHub stars between them. The most-adopted is monolog at 21,406 stars.

Are these logger projects free to use?

Yes — 5 of the 5 carry an explicit open-source licence across 2 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 logger 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 logger projects still maintained?

5 of the 5 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.