head to head · open source
Sentry vs Gatus
Sentry has 45,707 GitHub stars, 4,965 forks, 2,265 open issues and last shipped yesterday. Gatus has 12,502 stars, 890 forks, 382 open issues and last shipped yesterday. Sentry leads on adoption by 266% (45,707 vs 12,502 stars). Sentry is written in Python under a custom or non-standard licence; Gatus is written in Go under Apache-2.0. Sentry has attracted 11% as many forks as stars, Gatus 7%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (devops, 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.
← all 20902 open source comparisons
Side by side
| Sentry | Gatus | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 13K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 5.0K | ⑂ 890 |
| 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 Gatus if
- You want the Gatus feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and Gatus 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 Gatus
Gatus is a developer oriented health dashboard that gives you the ability to monitor your services using HTTP, ICMP, TCP, and even DNS queries as well as evaluate the result of said queries by using a list of conditions on values like the status code, the response time, the certificate expiration, the body and many others. The icing on top is that each of these health checks can be paired with alerting via Slack, Teams, PagerDuty, Discord, Twilio and many more. I personally deploy it in my Kubernetes cluster and let it monitor the status of my core applications: Looking for a managed solution? Check out…
read the full Gatus 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 Gatus more popular?
Sentry has 45,707 GitHub stars and Gatus has 12,502. Sentry has the larger community by that measure.
Are Sentry and Gatus free?
Both are open source. Sentry has no licence declared in this registry, and Gatus is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Sentry and Gatus?
Sentry is written in Python and Gatus 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 Gatus?
Choose Sentry if you want the larger community (45,707 stars) or its Custom / other licence terms. Choose Gatus if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.