head to head · open source
Uptime Kuma vs Uptrace
Uptime Kuma has 91,477 GitHub stars, 8,426 forks, 805 open issues and last shipped yesterday. Uptrace has 4,286 stars, 215 forks, 52 open issues and last shipped 1 months ago. Uptime Kuma leads on adoption by 2,034% (91,477 vs 4,286 stars). Uptime Kuma is written in JavaScript under MIT; Uptrace is written in Go under AGPL-3.0. Uptime Kuma has attracted 9% as many forks as stars, Uptrace 5%. Uptime Kuma was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (monitoring, self-hosted), 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.
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Side by side
| Uptime Kuma | Uptrace | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 4.3K |
| License | MIT | AGPL-3.0 |
| Written in | JavaScript | Go |
| Last push | 2026-09-17 | 2026-08-13 |
| Forks | ⑂ 8.4K | ⑂ 215 |
| 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 Uptrace if
- You want the Uptrace feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Go
- You evaluated both and Uptrace 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 Uptrace
Uptrace is open source APM platform for modern applications. It sits in Infrastructure & Operations / Monitoring & Observability ecosystem. It supports OpenTelemetry traces, metrics, logs. It gives one interface for application monitoring, distributed tracing, performance monitoring, and log inspection. README says it comes with query builder, rich dashboards, alerting rules, notifications, and integrations for most languages and frameworks. It is written in Go and licensed AGPL 3.0.
read the full Uptrace overview →
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Frequently asked questions
Is Uptime Kuma or Uptrace more popular?
Uptime Kuma has 91,477 GitHub stars and Uptrace has 4,286. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and Uptrace free?
Both are open source. Uptime Kuma is licensed under MIT and Uptrace under AGPL-3.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and Uptrace?
Uptime Kuma is written in JavaScript and Uptrace in Go. 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 Uptrace?
Choose Uptime Kuma if you want the larger community (91,477 stars) or its MIT licence terms. Choose Uptrace if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.