head to head · open source
Sentry vs SigNoz
Sentry has 44,792 GitHub stars, 4,854 forks, 2,265 open issues and last shipped yesterday. SigNoz has 32,116 stars, 2,493 forks, 1,557 open issues and last shipped yesterday. Sentry leads on adoption by 39% (44,792 vs 32,116 stars). Sentry is written in Python under a custom or non-standard licence; SigNoz is written in TypeScript under a custom or non-standard licence. Sentry has attracted 11% as many forks as stars, SigNoz 8%. 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.
← all 8884 open source comparisons
Side by side
| Sentry | SigNoz | |
|---|---|---|
| GitHub stars | ★ 45K | ★ 32K |
| License | Custom / other | Custom / other |
| Written in | Python | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 4.9K | ⑂ 2.5K |
| 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 SigNoz if
- You want the SigNoz feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches TypeScript
- You evaluated both and SigNoz 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 SigNoz
SigNoz is an open source, OpenTelemetry native observability platform for cloud native applications. It unifies logs, metrics, traces, alerts, and dashboards into a single tool, replacing fragmented monitoring stacks with a correlated signal pipeline. It lives in the observability ecosystem alongside tools like Prometheus, Jaeger, and Grafana, and is positioned as an open alternative to Datadog.
read the full SigNoz overview →
More in Infrastructure & Operations
Related comparisons
More Monitoring & Observability projects
Compare either of these against the rest of the Monitoring & Observability field.
Frequently asked questions
Is Sentry or SigNoz more popular?
Sentry has 44,792 GitHub stars and SigNoz has 32,116. Sentry has the larger community by that measure.
Are Sentry and SigNoz free?
Neither Sentry nor SigNoz declares a licence in this registry, so check each project's own repository before relying on either for a commercial use. Both are free to self-host.
What is the difference between Sentry and SigNoz?
Sentry is written in Python and SigNoz in TypeScript. 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 SigNoz?
Choose Sentry if you want the larger community (44,792 stars) or its Custom / other licence terms. Choose SigNoz if its feature set, stack or Custom / other licence fits better. Both are self-hostable.