head to head · open source
Uptime Kuma vs mulog
Uptime Kuma has 93,190 GitHub stars, 8,655 forks, 805 open issues and last shipped yesterday. mulog has 540 stars, 50 forks, 12 open issues and last shipped 4 months ago. Uptime Kuma leads on adoption by 17,157% (93,190 vs 540 stars). Uptime Kuma is written in JavaScript under MIT; mulog is written in Clojure under Apache-2.0. Uptime Kuma has attracted 9% as many forks as stars, mulog 9%. 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 | mulog | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 540 |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Clojure |
| Last push | 2026-11-02 | 2026-06-27 |
| Forks | ⑂ 8.7K | ⑂ 50 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Uptime Kuma if
- You weight community size — 93K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick mulog if
- You want the mulog feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Clojure
- You evaluated both and mulog fits your workflow better
About Uptime Kuma
Uptime Kuma Uptime Kuma is an easy to use self hosted monitoring tool. 🥔 Live Demo Try it! Demo Server (Location: Frankfurt Germany): It is a temporary live demo, all data will be deleted after 10 minutes. Sponsored by Uptime Kuma Sponsors. ⭐ Features Monitoring uptime for HTTP(s) / TCP / HTTP(s) Keyword / HTTP(s) Json Query / Websocket / Ping / DNS Record / Push / Steam Game Server / Docker Containers Fancy, Reactive, Fast UI/UX Notifications via Telegram, Discord, Gotify, Slack, Pushover, Email (SMTP), and 90+ notification services, click here for the full list 20 second intervals Multi Languages Multiple…
read the full Uptime Kuma overview →
About mulog
μ/log μ/log (Pronounced: /mjuːlog/) is a micro logging library that logs events and data, not words! From the Greek letter μ , mu (Pronunciation: /mjuː/) The twelfth letter of the Greek alphabet (Μ, μ), often used as a prefix for micro which is 10 6 in the SI (System of Units). Lowercase letter " u " is often substituted for " μ " when the Greek character is not typographically available. (source: Features Here some features and key design decisions that make μ/log special: Effortlessly, logs events as data points. No need to construct strings that then need to be deconstructed later. Fast, extremely fast, under…
read the full mulog overview →
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Frequently asked questions
Is Uptime Kuma or mulog more popular?
Uptime Kuma has 93,190 GitHub stars and mulog has 540. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and mulog free?
Both are open source. Uptime Kuma is licensed under MIT and mulog under Apache-2.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and mulog?
Uptime Kuma is written in JavaScript and mulog in Clojure. 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 mulog?
Choose Uptime Kuma if you want the larger community (93,190 stars) or its MIT licence terms. Choose mulog if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.