head to head · open source
Uptime Kuma vs logbook
Uptime Kuma has 91,498 GitHub stars, 8,431 forks, 805 open issues and last shipped today. logbook has 2,065 stars, 288 forks, 26 open issues and last shipped today. Uptime Kuma leads on adoption by 4,331% (91,498 vs 2,065 stars). Uptime Kuma is written in JavaScript under MIT; logbook is written in Java under MIT. Uptime Kuma has attracted 9% as many forks as stars, logbook 14%. logbook 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.
← all 8884 open source comparisons
Side by side
| Uptime Kuma | logbook | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 2.1K |
| License | MIT | MIT |
| Written in | JavaScript | Java |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 8.4K | ⑂ 288 |
| 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 logbook if
- You want the logbook feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Java
- You evaluated both and logbook 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 logbook
Logbook: HTTP request and response logging Logbook noun, /lɑɡ bʊk/: A book in which measurements from the ship's log are recorded, along with other salient details of the voyage. Logbook is an extensible Java library to enable complete request and response logging for different client and server side technologies. It satisfies a special need by a) allowing web application developers to log any HTTP traffic that an application receives or sends b) in a way that makes it easy to persist and analyze it later. This can be useful for traditional log analysis, meeting audit requirements or investigating individual hist…
read the full logbook 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 logbook more popular?
Uptime Kuma has 91,498 GitHub stars and logbook has 2,065. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and logbook free?
Both are open source. Uptime Kuma is licensed under MIT and logbook under MIT. Neither carries a licence fee.
What is the difference between Uptime Kuma and logbook?
Uptime Kuma is written in JavaScript and logbook 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 logbook?
Choose Uptime Kuma if you want the larger community (91,498 stars) or its MIT licence terms. Choose logbook if its feature set, stack or MIT licence fits better. Both are self-hostable.