head to head · open source
Uptime Kuma vs phantomas
Uptime Kuma has 91,498 GitHub stars, 8,431 forks, 805 open issues and last shipped today. phantomas has 2,260 stars, 135 forks, 65 open issues and last shipped 2 days ago. Uptime Kuma leads on adoption by 3,949% (91,498 vs 2,260 stars). Uptime Kuma is written in JavaScript under MIT; phantomas is written in JavaScript under BSD-2-Clause. Uptime Kuma has attracted 9% as many forks as stars, phantomas 6%. 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 | phantomas | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 2.3K |
| License | MIT | BSD-2-Clause |
| Written in | JavaScript | JavaScript |
| Last push | 2026-09-18 | 2026-09-16 |
| Forks | ⑂ 8.4K | ⑂ 135 |
| 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 phantomas if
- You want the phantomas feature set and don't need the biggest community
- You prefer the BSD-2-Clause license terms
- Your stack matches JavaScript
- You evaluated both and phantomas 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 phantomas
phantomas ========= Headless Chromium based modular web performance metrics collector. And why phantomas? Well, because :) Requirements NodeJS 16+ Installation Via npm This will install a recent version of Chromium supported by puppeteer module. Via Docker You can use phantomas Docker image: Or you can fetch from GitHub's Containers registry Support You can get support for phantomas via xs:code. Usage example Or run ./examples/index.js . Development version To get the latest development version of phantomas (and install all required dependencies): Running tests First you need to start a local nginx container that…
read the full phantomas overview →
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Frequently asked questions
Is Uptime Kuma or phantomas more popular?
Uptime Kuma has 91,498 GitHub stars and phantomas has 2,260. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and phantomas free?
Both are open source. Uptime Kuma is licensed under MIT and phantomas under BSD-2-Clause. Neither carries a licence fee.
What is the difference between Uptime Kuma and phantomas?
Uptime Kuma is written in JavaScript and phantomas in JavaScript. 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 phantomas?
Choose Uptime Kuma if you want the larger community (91,498 stars) or its MIT licence terms. Choose phantomas if its feature set, stack or BSD-2-Clause licence fits better. Both are self-hostable.