head to head · open source
Sentry vs monolog
Sentry has 45,697 GitHub stars, 4,959 forks, 2,265 open issues and last shipped yesterday. monolog has 21,404 stars, 1,921 forks, 3 open issues and last shipped 2 days ago. Sentry leads on adoption by 113% (45,697 vs 21,404 stars). Sentry is written in Python under a custom or non-standard licence; monolog is written in PHP under MIT. Sentry has attracted 11% as many forks as stars, monolog 9%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (hacktoberfest), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Sentry | monolog | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 21K |
| License | Custom / other | MIT |
| Written in | Python | PHP |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 5.0K | ⑂ 1.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Sentry if
- You weight community size — 46K stars and counting
- You want the Custom / other license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick monolog if
- You want the monolog feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches PHP
- You evaluated both and monolog fits your workflow better
About Sentry
Users and logs provide clues. Sentry provides answers. What's Sentry? Sentry is the debugging platform that helps every developer detect, trace, and fix issues. Code breaks, fix it faster. Official Sentry SDKs JavaScript Electron React Native Python Ruby PHP Laravel Go Rust Java/Kotlin Objective C/Swift C\ /F\ C/C++ Dart/Flutter Perl Clojure Elixir Unity Unreal Engine Godot Engine PowerShell Resources Documentation Discussions (Bugs, feature requests, general questions) Discord Contributing Bug Tracker Code Transifex (Translate Sentry\!)
read the full Sentry overview →
About monolog
Monolog Logging for PHP Note This is the documentation for Monolog 3.x , if you are using older releases see the documentation for Monolog 2.x or Monolog 1.x Monolog sends your logs to files, sockets, inboxes, databases and various web services. See the complete list of handlers below. Special handlers allow you to build advanced logging strategies. This library implements the PSR 3 interface that you can type hint against in your own libraries to keep a maximum of interoperability. You can also use it in your applications to make sure you can always use another compatible logger at a later time. As of 1.11.0…
read the full monolog overview →
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Frequently asked questions
Is Sentry or monolog more popular?
Sentry has 45,697 GitHub stars and monolog has 21,404. Sentry has the larger community by that measure.
Are Sentry and monolog free?
Both are open source. Sentry has no licence declared in this registry, and monolog is licensed under MIT. Both are free to self-host.
What is the difference between Sentry and monolog?
Sentry is written in Python and monolog in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Sentry or monolog?
Choose Sentry if you want the larger community (45,697 stars) or its Custom / other licence terms. Choose monolog if its feature set, stack or MIT licence fits better. Both are self-hostable.