head to head · open source
Uptime Kuma vs monolog
Uptime Kuma has 91,477 GitHub stars, 8,426 forks, 805 open issues and last shipped yesterday. monolog has 21,406 stars, 1,910 forks, 3 open issues and last shipped 9 days ago. Uptime Kuma leads on adoption by 327% (91,477 vs 21,406 stars). Uptime Kuma is written in JavaScript under MIT; monolog is written in PHP under MIT. Uptime Kuma has attracted 9% as many forks as stars, monolog 9%. 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 | monolog | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 21K |
| License | MIT | MIT |
| Written in | JavaScript | PHP |
| Last push | 2026-09-17 | 2026-09-09 |
| Forks | ⑂ 8.4K | ⑂ 1.9K |
| 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 monolog if
- You want the monolog feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches PHP
- You evaluated both and monolog 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 monolog
Monolog is a logging library for PHP that sends log records to files, sockets, inboxes, databases, and various web services. It ships with the handlers, formatters, and processors needed to route records where they belong, and special handlers allow more advanced logging strategies than a single output stream. The library lives in the PHP ecosystem and is distributed through Packagist as monolog/monolog . It is released under the MIT license and has been developed for sixteen years, with more than twenty one thousand stars and roughly nineteen hundred forks on GitHub.
read the full monolog overview →
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Frequently asked questions
Is Uptime Kuma or monolog more popular?
Uptime Kuma has 91,477 GitHub stars and monolog has 21,406. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and monolog free?
Both are open source. Uptime Kuma is licensed under MIT and monolog under MIT. Neither carries a licence fee.
What is the difference between Uptime Kuma and monolog?
Uptime Kuma is written in JavaScript and monolog in PHP. 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 monolog?
Choose Uptime Kuma if you want the larger community (91,477 stars) or its MIT licence terms. Choose monolog if its feature set, stack or MIT licence fits better. Both are self-hostable.