head to head · open source
Uptime Kuma vs grimoirelab
Uptime Kuma has 91,498 GitHub stars, 8,431 forks, 805 open issues and last shipped yesterday. grimoirelab has 626 stars, 231 forks, 78 open issues and last shipped 3 days ago. Uptime Kuma leads on adoption by 14,516% (91,498 vs 626 stars). Uptime Kuma is written in JavaScript under MIT; grimoirelab is written in Shell under GPL-3.0. Uptime Kuma has attracted 9% as many forks as stars, grimoirelab 37%. Uptime Kuma was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | grimoirelab | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 626 |
| License | MIT | GPL-3.0 |
| Written in | JavaScript | Shell |
| Last push | 2026-09-18 | 2026-09-16 |
| Forks | ⑂ 8.4K | ⑂ 231 |
| 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 grimoirelab if
- You want the grimoirelab feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Shell
- You evaluated both and grimoirelab 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 grimoirelab
GrimoireLab is a GPL 3.0 licensed CHAOSS toolset for software development analytics that retrieves data from the systems used to support software development, stores it in databases, enriches it by computing metrics, and makes it available for analytics and visualization, aimed at the people who need to measure development activity rather than guess at it.
read the full grimoirelab overview →
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Frequently asked questions
Is Uptime Kuma or grimoirelab more popular?
Uptime Kuma has 91,498 GitHub stars and grimoirelab has 626. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and grimoirelab free?
Both are open source. Uptime Kuma is licensed under MIT and grimoirelab under GPL-3.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and grimoirelab?
Uptime Kuma is written in JavaScript and grimoirelab in Shell. 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 grimoirelab?
Choose Uptime Kuma if you want the larger community (91,498 stars) or its MIT licence terms. Choose grimoirelab if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.