head to head · open source
Uptime Kuma vs jmx_exporter
Uptime Kuma has 93,190 GitHub stars, 8,655 forks, 805 open issues and last shipped yesterday. jmx_exporter has 3,334 stars, 1,226 forks, 12 open issues and last shipped 3 days ago. Uptime Kuma leads on adoption by 2,695% (93,190 vs 3,334 stars). Uptime Kuma is written in JavaScript under MIT; jmx_exporter is written in Java under Apache-2.0. Uptime Kuma has attracted 9% as many forks as stars, jmx_exporter 37%. 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 | jmx_exporter | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 3.3K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Java |
| Last push | 2026-11-02 | 2026-10-31 |
| Forks | ⑂ 8.7K | ⑂ 1.2K |
| 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 jmx_exporter if
- You want the jmx_exporter feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and jmx_exporter 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 jmx_exporter
JMX Exporter The JMX Exporter is a collector to capture JMX MBean values. Documentation Documentation can be found at JMX Exporter on prometheus.github.io Contributing and community See CONTRIBUTING.md and the community section of the Prometheus homepage. The Prometheus Java community is present on the CNCF Slack on prometheus java , and we have a fortnightly community call in the Prometheus public calendar. License Apache License 2.0, see LICENSE.
read the full jmx_exporter overview →
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Frequently asked questions
Is Uptime Kuma or jmx_exporter more popular?
Uptime Kuma has 93,190 GitHub stars and jmx_exporter has 3,334. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and jmx_exporter free?
Both are open source. Uptime Kuma is licensed under MIT and jmx_exporter under Apache-2.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and jmx_exporter?
Uptime Kuma is written in JavaScript and jmx_exporter 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 jmx_exporter?
Choose Uptime Kuma if you want the larger community (93,190 stars) or its MIT licence terms. Choose jmx_exporter if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.