head to head · open source
Uptime Kuma vs OneUptime
Uptime Kuma has 91,477 GitHub stars, 8,426 forks, 805 open issues and last shipped yesterday. OneUptime has 7,617 stars, 455 forks, 292 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 1,101% (91,477 vs 7,617 stars). Uptime Kuma is written in JavaScript under MIT; OneUptime is written in TypeScript under Apache-2.0. Uptime Kuma has attracted 9% as many forks as stars, OneUptime 6%. Uptime Kuma 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
| Uptime Kuma | OneUptime | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 7.6K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 8.4K | ⑂ 455 |
| 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 OneUptime if
- You want the OneUptime feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and OneUptime 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 OneUptime
OneUptime is an open source, self hostable monitoring and observability platform written in TypeScript and released under the Apache 2.0 licence, built for DevOps, SRE, and on call teams that want uptime checks, incident response, status pages, logs, traces, metrics, and APM in one application instead of a shelf of separate SaaS subscriptions.
read the full OneUptime overview →
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Frequently asked questions
Is Uptime Kuma or OneUptime more popular?
Uptime Kuma has 91,477 GitHub stars and OneUptime has 7,617. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and OneUptime free?
Both are open source. Uptime Kuma is licensed under MIT and OneUptime under Apache-2.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and OneUptime?
Uptime Kuma is written in JavaScript and OneUptime in TypeScript. 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 OneUptime?
Choose Uptime Kuma if you want the larger community (91,477 stars) or its MIT licence terms. Choose OneUptime if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.