head to head · open source
Uptime Kuma vs Grafana Loki
Uptime Kuma has 93,190 GitHub stars, 8,655 forks, 805 open issues and last shipped yesterday. Grafana Loki has 29,111 stars, 4,169 forks, 1,620 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 220% (93,190 vs 29,111 stars). Uptime Kuma is written in JavaScript under MIT; Grafana Loki is written in Go under AGPL-3.0. Uptime Kuma has attracted 9% as many forks as stars, Grafana Loki 14%. Grafana Loki 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 | Grafana Loki | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 29K |
| License | MIT | AGPL-3.0 |
| Written in | JavaScript | Go |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 8.7K | ⑂ 4.2K |
| 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 Grafana Loki if
- You want the Grafana Loki 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 Grafana Loki 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 Grafana Loki
Loki: like Prometheus, but for logs. Loki is a horizontally scalable, highly available, multi tenant log aggregation system inspired by Prometheus. It is designed to be very cost effective and easy to operate. It does not index the contents of the logs, but rather a set of labels for each log stream. Compared to other log aggregation systems, Loki: does not do full text indexing on logs. By storing compressed, unstructured logs and only indexing metadata, Loki is simpler to operate and cheaper to run. indexes and groups log streams using the same labels you’re already using with Prometheus, enabling you to…
read the full Grafana Loki overview →
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Frequently asked questions
Is Uptime Kuma or Grafana Loki more popular?
Uptime Kuma has 93,190 GitHub stars and Grafana Loki has 29,111. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and Grafana Loki free?
Both are open source. Uptime Kuma is licensed under MIT and Grafana Loki under AGPL-3.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and Grafana Loki?
Uptime Kuma is written in JavaScript and Grafana Loki 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 Grafana Loki?
Choose Uptime Kuma if you want the larger community (93,190 stars) or its MIT licence terms. Choose Grafana Loki if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.