head to head · open source
Sentry vs OpenReplay
Sentry has 44,806 GitHub stars, 4,857 forks, 2,265 open issues and last shipped today. OpenReplay has 12,881 stars, 845 forks, 180 open issues and last shipped 2 days ago. Sentry leads on adoption by 248% (44,806 vs 12,881 stars). Sentry is written in Python under a custom or non-standard licence; OpenReplay is written in TypeScript under a custom or non-standard licence. Sentry has attracted 11% as many forks as stars, OpenReplay 7%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | OpenReplay | |
|---|---|---|
| GitHub stars | ★ 45K | ★ 13K |
| License | Custom / other | Custom / other |
| Written in | Python | TypeScript |
| Last push | 2026-09-20 | 2026-09-18 |
| Forks | ⑂ 4.9K | ⑂ 845 |
| 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 OpenReplay if
- You want the OpenReplay feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches TypeScript
- You evaluated both and OpenReplay 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 OpenReplay
OpenReplay is open source session replay suite. It lives in JavaScript web app monitoring and observability ecosystem. It supports session replay, cobrowsing, product analytics. TypeScript project. GitHub category is Infrastructure & Operations / Monitoring & Observability. Topics include analytics, angular, devtools, feature flags, ios, javascript, nextjs, product analytics, react, react native, real user monitoring, session replay.
read the full OpenReplay overview →
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Frequently asked questions
Is Sentry or OpenReplay more popular?
Sentry has 44,806 GitHub stars and OpenReplay has 12,881. Sentry has the larger community by that measure.
Are Sentry and OpenReplay free?
Neither Sentry nor OpenReplay 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 OpenReplay?
Sentry is written in Python and OpenReplay 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 OpenReplay?
Choose Sentry if you want the larger community (44,806 stars) or its Custom / other licence terms. Choose OpenReplay if its feature set, stack or Custom / other licence fits better. Both are self-hostable.