head to head · open source
Uptime Kuma vs g3log
Uptime Kuma has 91,498 GitHub stars, 8,431 forks, 805 open issues and last shipped yesterday. g3log has 964 stars, 280 forks, 0 open issues and last shipped 15 days ago. Uptime Kuma leads on adoption by 9,391% (91,498 vs 964 stars). Uptime Kuma is written in JavaScript under MIT; g3log is written in C++ under Unlicense. Uptime Kuma has attracted 9% as many forks as stars, g3log 29%. 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 | g3log | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 964 |
| License | MIT | Unlicense |
| Written in | JavaScript | C++ |
| Last push | 2026-09-18 | 2026-09-04 |
| Forks | ⑂ 8.4K | ⑂ 280 |
| 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 g3log if
- You want the g3log feature set and don't need the biggest community
- You prefer the Unlicense license terms
- Your stack matches C++
- You evaluated both and g3log 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 g3log
G3log is an asynchronous, crash safe C++ logging library for OSX, Windows, and several Linux distributions, aimed at C++ developers building critical task systems that must not lose log records when a process dies.
read the full g3log overview →
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Frequently asked questions
Is Uptime Kuma or g3log more popular?
Uptime Kuma has 91,498 GitHub stars and g3log has 964. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and g3log free?
Both are open source. Uptime Kuma is licensed under MIT and g3log under Unlicense. Neither carries a licence fee.
What is the difference between Uptime Kuma and g3log?
Uptime Kuma is written in JavaScript and g3log in C++. 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 g3log?
Choose Uptime Kuma if you want the larger community (91,498 stars) or its MIT licence terms. Choose g3log if its feature set, stack or Unlicense licence fits better. Both are self-hostable.