head to head · open source
Uptime Kuma vs huginn
Uptime Kuma has 91,477 GitHub stars, 8,426 forks, 805 open issues and last shipped yesterday. huginn has 49,967 stars, 4,298 forks, 698 open issues and last shipped 2 days ago. Uptime Kuma leads on adoption by 83% (91,477 vs 49,967 stars). Uptime Kuma is written in JavaScript under MIT; huginn is written in Ruby under MIT. Uptime Kuma has attracted 9% as many forks as stars, huginn 9%. 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 | huginn | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 50K |
| License | MIT | MIT |
| Written in | JavaScript | Ruby |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 8.4K | ⑂ 4.3K |
| 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 huginn if
- You want the huginn feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Ruby
- You evaluated both and huginn 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 huginn
Huginn is an open source system for building agents that perform automated tasks online, written in Ruby and released under the MIT license. Its agents read the web, watch for events, and take actions on the user's behalf. Internally, agents create and consume events that propagate along a directed graph, which means one agent's output becomes another agent's input and a chain of small steps can be composed into a larger workflow. The project lives in the Ruby ecosystem and is distributed as an official Docker image or installed locally from a forked repository.
read the full huginn overview →
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Frequently asked questions
Is Uptime Kuma or huginn more popular?
Uptime Kuma has 91,477 GitHub stars and huginn has 49,967. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and huginn free?
Both are open source. Uptime Kuma is licensed under MIT and huginn under MIT. Neither carries a licence fee.
What is the difference between Uptime Kuma and huginn?
Uptime Kuma is written in JavaScript and huginn in Ruby. 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 huginn?
Choose Uptime Kuma if you want the larger community (91,477 stars) or its MIT licence terms. Choose huginn if its feature set, stack or MIT licence fits better. Both are self-hostable.