head to head · open source
Uptime Kuma vs Peekaping
Uptime Kuma has 91,477 GitHub stars, 8,426 forks, 805 open issues and last shipped yesterday. Peekaping has 1,191 stars, 69 forks, 92 open issues and last shipped 4 months ago. Uptime Kuma leads on adoption by 7,581% (91,477 vs 1,191 stars). Uptime Kuma is written in JavaScript under MIT; Peekaping is written in Go under MIT. Uptime Kuma has attracted 9% as many forks as stars, Peekaping 6%. Uptime Kuma was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 6 topic tags (monitor, monitoring, 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 | Peekaping | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 1.2K |
| License | MIT | MIT |
| Written in | JavaScript | Go |
| Last push | 2026-09-17 | 2026-05-24 |
| Forks | ⑂ 8.4K | ⑂ 69 |
| 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 Peekaping if
- You want the Peekaping feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and Peekaping 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 Peekaping
Peekaping is a self hosted uptime monitoring system built with Go on the server and React with TypeScript in the browser, released under the MIT license. It lives in the open source infrastructure and monitoring ecosystem as a direct alternative to Uptime Kuma, and it tracks the availability of websites, APIs, and other network services through a range of monitor types. The project ships with a web interface, status pages, and an alerting layer that can notify operators through many channels when a check fails. It is distributed primarily as Docker images and is documented at peekaping.com, with a live demo and a…
read the full Peekaping overview →
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Frequently asked questions
Is Uptime Kuma or Peekaping more popular?
Uptime Kuma has 91,477 GitHub stars and Peekaping has 1,191. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and Peekaping free?
Both are open source. Uptime Kuma is licensed under MIT and Peekaping under MIT. Neither carries a licence fee.
What is the difference between Uptime Kuma and Peekaping?
Uptime Kuma is written in JavaScript and Peekaping 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, Uptime Kuma or Peekaping?
Choose Uptime Kuma if you want the larger community (91,477 stars) or its MIT licence terms. Choose Peekaping if its feature set, stack or MIT licence fits better. Both are self-hostable.