head to head · open source
Uptime Kuma vs Cachet
Uptime Kuma has 91,477 GitHub stars, 8,426 forks, 805 open issues and last shipped yesterday. Cachet has 15,242 stars, 1,632 forks, 7 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 500% (91,477 vs 15,242 stars). Uptime Kuma is written in JavaScript under MIT; Cachet is written in PHP under a custom or non-standard licence. Uptime Kuma has attracted 9% as many forks as stars, Cachet 11%. Uptime Kuma was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (self-hosted, selfhosted), 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
| Uptime Kuma | Cachet | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 15K |
| License | MIT | Custom / other |
| Written in | JavaScript | PHP |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 8.4K | ⑂ 1.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Uptime Kuma if
- You weight community size — 91K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick Cachet if
- You want the Cachet feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches PHP
- You evaluated both and Cachet fits your workflow better
About Uptime Kuma
Uptime Kuma is a free, MIT licensed, self hosted monitoring tool with a reactive web dashboard, built for operators and teams that want to watch their own HTTP, TCP, and DNS endpoints and keep the resulting data on their own infrastructure.
read the full Uptime Kuma overview →
About Cachet
Cachet is an open source, self hosted status page system. It lives in the PHP and Laravel ecosystem, and it is categorized under Infrastructure and Operations and Monitoring and Observability. The project is intended for teams that need a dedicated place to communicate service status and downtime in a transparent way.
read the full Cachet overview →
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Frequently asked questions
Is Uptime Kuma or Cachet more popular?
Uptime Kuma has 91,477 GitHub stars and Cachet has 15,242. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and Cachet free?
Both are open source. Uptime Kuma is licensed under MIT, and Cachet has no licence declared in this registry. Both are free to self-host.
What is the difference between Uptime Kuma and Cachet?
Uptime Kuma is written in JavaScript and Cachet in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Uptime Kuma or Cachet?
Choose Uptime Kuma if you want the larger community (91,477 stars) or its MIT licence terms. Choose Cachet if its feature set, stack or Custom / other licence fits better. Both are self-hostable.