head to head · open source
Sentry vs checkcle
Sentry has 44,806 GitHub stars, 4,857 forks, 2,265 open issues and last shipped today. checkcle has 3,265 stars, 290 forks, 92 open issues and last shipped 2 months ago. Sentry leads on adoption by 1,272% (44,806 vs 3,265 stars). Sentry is written in Python under a custom or non-standard licence; checkcle is written in Go under MIT. Sentry has attracted 11% as many forks as stars, checkcle 9%. 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.
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Side by side
| Sentry | checkcle | |
|---|---|---|
| GitHub stars | ★ 45K | ★ 3.3K |
| License | Custom / other | MIT |
| Written in | Python | Go |
| Last push | 2026-09-20 | 2026-07-17 |
| Forks | ⑂ 4.9K | ⑂ 290 |
| 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 checkcle if
- You want the checkcle feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and checkcle 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 checkcle
CheckCle is a self hosted, open source monitoring platform that gives developers, sysadmins, and DevOps teams real time uptime, infrastructure, incident, and alert visibility across full stack systems, applications, and services, and it can be deployed anywhere.
read the full checkcle overview →
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Frequently asked questions
Is Sentry or checkcle more popular?
Sentry has 44,806 GitHub stars and checkcle has 3,265. Sentry has the larger community by that measure.
Are Sentry and checkcle free?
Both are open source. Sentry has no licence declared in this registry, and checkcle is licensed under MIT. Both are free to self-host.
What is the difference between Sentry and checkcle?
Sentry is written in Python and checkcle 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 checkcle?
Choose Sentry if you want the larger community (44,806 stars) or its Custom / other licence terms. Choose checkcle if its feature set, stack or MIT licence fits better. Both are self-hostable.