head to head · open source
Uptime Kuma vs 0xtools
Uptime Kuma has 91,498 GitHub stars, 8,431 forks, 805 open issues and last shipped yesterday. 0xtools has 1,820 stars, 134 forks, 17 open issues and last shipped 10 months ago. Uptime Kuma leads on adoption by 4,927% (91,498 vs 1,820 stars). Uptime Kuma is written in JavaScript under MIT; 0xtools is written in Python under GPL-2.0. Uptime Kuma has attracted 9% as many forks as stars, 0xtools 7%. 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.
← all 13541 open source comparisons
Side by side
| Uptime Kuma | 0xtools | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 1.8K |
| License | MIT | GPL-2.0 |
| Written in | JavaScript | Python |
| Last push | 2026-09-18 | 2025-11-25 |
| Forks | ⑂ 8.4K | ⑂ 134 |
| 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 0xtools if
- You want the 0xtools feature set and don't need the biggest community
- You prefer the GPL-2.0 license terms
- Your stack matches Python
- You evaluated both and 0xtools 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 0xtools
0x.Tools is a GPL 2.0 Linux performance and observability toolkit, listed in this registry as Python, that gives engineers an X ray view of what every thread on a running system is actually doing, from kernel space up.
read the full 0xtools overview →
More in Infrastructure & Operations
Related comparisons
More Monitoring & Observability projects
Compare either of these against the rest of the Monitoring & Observability field.
Frequently asked questions
Is Uptime Kuma or 0xtools more popular?
Uptime Kuma has 91,498 GitHub stars and 0xtools has 1,820. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and 0xtools free?
Both are open source. Uptime Kuma is licensed under MIT and 0xtools under GPL-2.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and 0xtools?
Uptime Kuma is written in JavaScript and 0xtools in Python. 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 0xtools?
Choose Uptime Kuma if you want the larger community (91,498 stars) or its MIT licence terms. Choose 0xtools if its feature set, stack or GPL-2.0 licence fits better. Both are self-hostable.