head to head · open source
Sentry vs monitoror
Sentry has 45,697 GitHub stars, 4,959 forks, 2,265 open issues and last shipped yesterday. monitoror has 4,393 stars, 194 forks, 77 open issues and last shipped 4 days ago. Sentry leads on adoption by 940% (45,697 vs 4,393 stars). Sentry is written in Python under a custom or non-standard licence; monitoror is written in Go under MIT. Sentry has attracted 11% as many forks as stars, monitoror 4%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (monitor, 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 | monitoror | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 4.4K |
| License | Custom / other | MIT |
| Written in | Python | Go |
| Last push | 2026-11-02 | 2026-10-30 |
| Forks | ⑂ 5.0K | ⑂ 194 |
| 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 monitoror if
- You want the monitoror feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and monitoror 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 monitoror
Monitoror Monitoror is a wallboard monitoring app to monitor server status; monitor CI builds progress or even display critical values. Demo Visit Monitoror live demo Getting started Monitoror is a single file app written in Go which can be run on these platforms: Linux (64bits, ARM) macOS Windows (64bits) The app is divided into two parts: Core and UI. Core is the server side Monitoror HTTP API, configured by the environment variables or .env file. UI is the client side Monitoror loaded in browser, which is the wallboard itself. Visit the Monitoror website for more details Documentation All details about…
read the full monitoror overview →
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Frequently asked questions
Is Sentry or monitoror more popular?
Sentry has 45,697 GitHub stars and monitoror has 4,393. Sentry has the larger community by that measure.
Are Sentry and monitoror free?
Both are open source. Sentry has no licence declared in this registry, and monitoror is licensed under MIT. Both are free to self-host.
What is the difference between Sentry and monitoror?
Sentry is written in Python and monitoror in Go. 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 monitoror?
Choose Sentry if you want the larger community (45,697 stars) or its Custom / other licence terms. Choose monitoror if its feature set, stack or MIT licence fits better. Both are self-hostable.