head to head · open source
Sentry vs monoscope
Sentry has 45,704 GitHub stars, 4,959 forks, 2,265 open issues and last shipped yesterday. monoscope has 2,041 stars, 87 forks, 32 open issues and last shipped yesterday. Sentry leads on adoption by 2,139% (45,704 vs 2,041 stars). Sentry is written in Python under a custom or non-standard licence; monoscope is written in Haskell under AGPL-3.0. Sentry has attracted 11% as many forks as stars, monoscope 4%. 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.
← all 20902 open source comparisons
Side by side
| Sentry | monoscope | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 2.0K |
| License | Custom / other | AGPL-3.0 |
| Written in | Python | Haskell |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 5.0K | ⑂ 87 |
| 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 monoscope if
- You want the monoscope feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Haskell
- You evaluated both and monoscope 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 monoscope
Open source observability platform with S3 storage Ingest and explore logs, traces, and metrics stored in your S3 buckets. Query with natural language. Create AI agents that detect anomalies and send daily/weekly reports to your inbox. Website • Playground • Discord • Twitter • Documentation What is Monoscope? • Cloud vs Self hosted • Quick Start • AI Agents • Roadmap What is Monoscope? Monoscope is an open source observability platform that stores your telemetry data in S3 compatible storage. Self host it or use our cloud offering. Core capabilities: 💰 S3 storage — Store years of logs, metrics, and traces…
read the full monoscope 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 monoscope more popular?
Sentry has 45,704 GitHub stars and monoscope has 2,041. Sentry has the larger community by that measure.
Are Sentry and monoscope free?
Both are open source. Sentry has no licence declared in this registry, and monoscope is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Sentry and monoscope?
Sentry is written in Python and monoscope in Haskell. 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 monoscope?
Choose Sentry if you want the larger community (45,704 stars) or its Custom / other licence terms. Choose monoscope if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.