head to head · open source
Sentry vs loongcollector
Sentry has 44,806 GitHub stars, 4,857 forks, 2,265 open issues and last shipped today. loongcollector has 2,196 stars, 450 forks, 166 open issues and last shipped today. Sentry leads on adoption by 1,940% (44,806 vs 2,196 stars). Sentry is written in Python under a custom or non-standard licence; loongcollector is written in C++ under Apache-2.0. Sentry has attracted 11% as many forks as stars, loongcollector 20%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (apm), 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 | loongcollector | |
|---|---|---|
| GitHub stars | ★ 45K | ★ 2.2K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | C++ |
| Last push | 2026-09-20 | 2026-09-20 |
| Forks | ⑂ 4.9K | ⑂ 450 |
| 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 loongcollector if
- You want the loongcollector feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C++
- You evaluated both and loongcollector 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 loongcollector
LoongCollector is an Apache 2.0, C++ based observability data collector from Alibaba that runs as a universal node agent for logs, metrics, traces, events and profiles, and it is built for platform, SRE and security teams operating Kubernetes clusters and high volume production fleets.
read the full loongcollector overview →
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Frequently asked questions
Is Sentry or loongcollector more popular?
Sentry has 44,806 GitHub stars and loongcollector has 2,196. Sentry has the larger community by that measure.
Are Sentry and loongcollector free?
Both are open source. Sentry has no licence declared in this registry, and loongcollector is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Sentry and loongcollector?
Sentry is written in Python and loongcollector in C++. 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 loongcollector?
Choose Sentry if you want the larger community (44,806 stars) or its Custom / other licence terms. Choose loongcollector if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.