head to head · open source
Uptime Kuma vs SigNoz
Uptime Kuma has 93,190 GitHub stars, 8,655 forks, 805 open issues and last shipped yesterday. SigNoz has 32,509 stars, 2,573 forks, 1,557 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 187% (93,190 vs 32,509 stars). Uptime Kuma is written in JavaScript under MIT; SigNoz is written in TypeScript under a custom or non-standard licence. Uptime Kuma has attracted 9% as many forks as stars, SigNoz 8%. SigNoz 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.
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Side by side
| Uptime Kuma | SigNoz | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 33K |
| License | MIT | Custom / other |
| Written in | JavaScript | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 8.7K | ⑂ 2.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Uptime Kuma if
- You weight community size — 93K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick SigNoz if
- You want the SigNoz feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches TypeScript
- You evaluated both and SigNoz fits your workflow better
About Uptime Kuma
Uptime Kuma Uptime Kuma is an easy to use self hosted monitoring tool. 🥔 Live Demo Try it! Demo Server (Location: Frankfurt Germany): It is a temporary live demo, all data will be deleted after 10 minutes. Sponsored by Uptime Kuma Sponsors. ⭐ Features Monitoring uptime for HTTP(s) / TCP / HTTP(s) Keyword / HTTP(s) Json Query / Websocket / Ping / DNS Record / Push / Steam Game Server / Docker Containers Fancy, Reactive, Fast UI/UX Notifications via Telegram, Discord, Gotify, Slack, Pushover, Email (SMTP), and 90+ notification services, click here for the full list 20 second intervals Multi Languages Multiple…
read the full Uptime Kuma overview →
About SigNoz
中文 · Deutsch · Português SigNoz is an open source observability platform built on OpenTelemetry. We’re building an enterprise grade alternative to fragmented monitoring stacks, with logs, metrics, traces, alerts, and dashboards in one place. Choose how to run SigNoz SigNoz Cloud (Recommended) Fully managed SigNoz with a 30 day free trial, no credit card required, usage based pricing that starts at $49, and regional data hosting. Start free → Enterprise Enterprise Cloud, BYOC, or Enterprise Self Hosted with compliance, support, custom retention, RBAC, ingestion controls, data residency, and region selection…
read the full SigNoz overview →
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Frequently asked questions
Is Uptime Kuma or SigNoz more popular?
Uptime Kuma has 93,190 GitHub stars and SigNoz has 32,509. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and SigNoz free?
Both are open source. Uptime Kuma is licensed under MIT, and SigNoz has no licence declared in this registry. Both are free to self-host.
What is the difference between Uptime Kuma and SigNoz?
Uptime Kuma is written in JavaScript and SigNoz in TypeScript. 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 SigNoz?
Choose Uptime Kuma if you want the larger community (93,190 stars) or its MIT licence terms. Choose SigNoz if its feature set, stack or Custom / other licence fits better. Both are self-hostable.