head to head · open source
Sentry vs javamelody
Sentry has 45,704 GitHub stars, 4,959 forks, 2,265 open issues and last shipped yesterday. javamelody has 3,043 stars, 751 forks, 42 open issues and last shipped 26 days ago. Sentry leads on adoption by 1,402% (45,704 vs 3,043 stars). Sentry is written in Python under a custom or non-standard licence; javamelody is written in Java under Apache-2.0. Sentry has attracted 11% as many forks as stars, javamelody 25%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (apm, monitoring), 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 | javamelody | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 3.0K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | Java |
| Last push | 2026-11-04 | 2026-10-10 |
| Forks | ⑂ 5.0K | ⑂ 751 |
| 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 javamelody if
- You want the javamelody feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and javamelody 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 javamelody
JavaMelody ========================= The goal of JavaMelody is to monitor Java or Java EE applications in QA and production environments. See the Project Home, Screenshots, User's guide and Release notes in the wiki, or see downloads in Releases, Issues and Pull requests. License Apache 2.0
read the full javamelody overview →
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Frequently asked questions
Is Sentry or javamelody more popular?
Sentry has 45,704 GitHub stars and javamelody has 3,043. Sentry has the larger community by that measure.
Are Sentry and javamelody free?
Both are open source. Sentry has no licence declared in this registry, and javamelody is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Sentry and javamelody?
Sentry is written in Python and javamelody in Java. 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 javamelody?
Choose Sentry if you want the larger community (45,704 stars) or its Custom / other licence terms. Choose javamelody if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.