head to head · open source
Uptime Kuma vs oshi
Uptime Kuma has 93,190 GitHub stars, 8,655 forks, 805 open issues and last shipped yesterday. oshi has 5,274 stars, 912 forks, 5 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 1,667% (93,190 vs 5,274 stars). Uptime Kuma is written in JavaScript under MIT; oshi is written in Java under MIT. Uptime Kuma has attracted 9% as many forks as stars, oshi 17%. 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 | oshi | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 5.3K |
| License | MIT | MIT |
| Written in | JavaScript | Java |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 8.7K | ⑂ 912 |
| 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 oshi if
- You want the oshi feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Java
- You evaluated both and oshi 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 oshi
OSHI is a free native (JNA or FFM) Operating System and Hardware Information library for Java. It does not require the installation of any additional native libraries and aims to provide a cross platform implementation to retrieve system information, such as OS version, processes, memory and CPU usage, disks and partitions, devices, sensors, etc. Supported Platforms Windows macOS Linux (Android) UNIX (AIX, DragonFly BSD, FreeBSD, NetBSD, OpenBSD, Solaris (illumos)) Supported Features Computer System and firmware, baseboard Operating System and Version/Build, virtualization (hypervisor) detection Physical (core)…
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Frequently asked questions
Is Uptime Kuma or oshi more popular?
Uptime Kuma has 93,190 GitHub stars and oshi has 5,274. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and oshi free?
Both are open source. Uptime Kuma is licensed under MIT and oshi under MIT. Neither carries a licence fee.
What is the difference between Uptime Kuma and oshi?
Uptime Kuma is written in JavaScript and oshi in Java. 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 oshi?
Choose Uptime Kuma if you want the larger community (93,190 stars) or its MIT licence terms. Choose oshi if its feature set, stack or MIT licence fits better. Both are self-hostable.