head to head · open source
Sentry vs nginx-lua-prometheus
Sentry has 44,806 GitHub stars, 4,857 forks, 2,265 open issues and last shipped today. nginx-lua-prometheus has 1,566 stars, 238 forks, 5 open issues and last shipped 9 days ago. Sentry leads on adoption by 2,761% (44,806 vs 1,566 stars). Sentry is written in Python under a custom or non-standard licence; nginx-lua-prometheus is written in Lua under MIT. Sentry has attracted 11% as many forks as stars, nginx-lua-prometheus 15%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (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 | nginx-lua-prometheus | |
|---|---|---|
| GitHub stars | ★ 45K | ★ 1.6K |
| License | Custom / other | MIT |
| Written in | Python | Lua |
| Last push | 2026-09-20 | 2026-09-11 |
| Forks | ⑂ 4.9K | ⑂ 238 |
| 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 nginx-lua-prometheus if
- You want the nginx-lua-prometheus feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Lua
- You evaluated both and nginx-lua-prometheus 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 nginx-lua-prometheus
nginx lua prometheus is an MIT licensed Lua library that lets Nginx record counters, gauges, and histograms inside a shared dictionary and expose them on a dedicated HTTP endpoint for Prometheus to scrape, and it is aimed at operators running OpenResty or a Lua enabled Nginx who want to instrument the request path directly rather than through a sidecar.
read the full nginx-lua-prometheus overview →
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Frequently asked questions
Is Sentry or nginx-lua-prometheus more popular?
Sentry has 44,806 GitHub stars and nginx-lua-prometheus has 1,566. Sentry has the larger community by that measure.
Are Sentry and nginx-lua-prometheus free?
Both are open source. Sentry has no licence declared in this registry, and nginx-lua-prometheus is licensed under MIT. Both are free to self-host.
What is the difference between Sentry and nginx-lua-prometheus?
Sentry is written in Python and nginx-lua-prometheus in Lua. 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 nginx-lua-prometheus?
Choose Sentry if you want the larger community (44,806 stars) or its Custom / other licence terms. Choose nginx-lua-prometheus if its feature set, stack or MIT licence fits better. Both are self-hostable.