head to head · open source
Sentry vs OneUptime
Sentry has 45,707 GitHub stars, 4,965 forks, 2,265 open issues and last shipped yesterday. OneUptime has 7,788 stars, 485 forks, 292 open issues and last shipped yesterday. Sentry leads on adoption by 487% (45,707 vs 7,788 stars). Sentry is written in Python under a custom or non-standard licence; OneUptime is written in TypeScript under a custom or non-standard licence. Sentry has attracted 11% as many forks as stars, OneUptime 6%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (devops, 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 | OneUptime | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 7.8K |
| License | Custom / other | Custom / other |
| Written in | Python | TypeScript |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 5.0K | ⑂ 485 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Sentry if
- You weight community size — 46K 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 OneUptime if
- You want the OneUptime feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches TypeScript
- You evaluated both and OneUptime fits your workflow better
About Sentry
Users and logs provide clues. Sentry provides answers. What's Sentry? Sentry is the debugging platform that helps every developer detect, trace, and fix issues. Code breaks, fix it faster. Official Sentry SDKs JavaScript Electron React Native Python Ruby PHP Laravel Go Rust Java/Kotlin Objective C/Swift C\ /F\ C/C++ Dart/Flutter Perl Clojure Elixir Unity Unreal Engine Godot Engine PowerShell Resources Documentation Discussions (Bugs, feature requests, general questions) Discord Contributing Bug Tracker Code Transifex (Translate Sentry\!)
read the full Sentry overview →
About OneUptime
English · 简体中文 · 繁體中文 · 日本語 · 한국어 · Español · Français · Deutsch · Português · Italiano · Русский · हिन्दी · فارسی · Nederlands · Dansk · Svenska · Norsk Agentic observability — one open source platform for uptime, incidents, on call, status pages, logs, traces, metrics & APM. When things go wrong, be the first to know — and the fastest to fix. OneUptime replaces a whole shelf of SaaS tools with one platform you can self host for free. It catches the outage, pages the right person, updates your status page, finds the root cause, and even opens the fix PR. Website • Docs • Quick Start • Pricing • Contribute 🚀…
read the full OneUptime overview →
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Frequently asked questions
Is Sentry or OneUptime more popular?
Sentry has 45,707 GitHub stars and OneUptime has 7,788. Sentry has the larger community by that measure.
Are Sentry and OneUptime free?
Neither Sentry nor OneUptime 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 OneUptime?
Sentry is written in Python and OneUptime 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 OneUptime?
Choose Sentry if you want the larger community (45,707 stars) or its Custom / other licence terms. Choose OneUptime if its feature set, stack or Custom / other licence fits better. Both are self-hostable.