head to head · open source
Sentry vs MyPerf4J
Sentry has 44,806 GitHub stars, 4,857 forks, 2,265 open issues and last shipped today. MyPerf4J has 3,568 stars, 554 forks, 5 open issues and last shipped 2 months ago. Sentry leads on adoption by 1,156% (44,806 vs 3,568 stars). Sentry is written in Python under a custom or non-standard licence; MyPerf4J is written in Java under BSD-3-Clause. Sentry has attracted 11% as many forks as stars, MyPerf4J 16%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (apm, monitor, 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 | MyPerf4J | |
|---|---|---|
| GitHub stars | ★ 45K | ★ 3.6K |
| License | Custom / other | BSD-3-Clause |
| Written in | Python | Java |
| Last push | 2026-09-20 | 2026-07-31 |
| Forks | ⑂ 4.9K | ⑂ 554 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Sentry if
- You weight community size — 45K 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 MyPerf4J if
- You want the MyPerf4J feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches Java
- You evaluated both and MyPerf4J fits your workflow better
About Sentry
Sentry is an open source debugging platform for detecting, tracing, and fixing software issues in real time. It lives in the developer infrastructure ecosystem and provides error tracking and performance monitoring across languages, frameworks, and runtime environments.
read the full Sentry overview →
About MyPerf4J
MyPerf4J is a high performance Java APM and method level performance statistics tool, built on ASM bytecode instrumentation and aimed at teams running high concurrency, low latency JVM applications that need continuous visibility into method and JVM behaviour without modifying application code.
read the full MyPerf4J overview →
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Frequently asked questions
Is Sentry or MyPerf4J more popular?
Sentry has 44,806 GitHub stars and MyPerf4J has 3,568. Sentry has the larger community by that measure.
Are Sentry and MyPerf4J free?
Both are open source. Sentry has no licence declared in this registry, and MyPerf4J is licensed under BSD-3-Clause. Both are free to self-host.
What is the difference between Sentry and MyPerf4J?
Sentry is written in Python and MyPerf4J 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 MyPerf4J?
Choose Sentry if you want the larger community (44,806 stars) or its Custom / other licence terms. Choose MyPerf4J if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.