head to head · open source
Uptime Kuma vs prometheus-operator
Uptime Kuma has 93,190 GitHub stars, 8,655 forks, 805 open issues and last shipped yesterday. prometheus-operator has 9,993 stars, 3,894 forks, 296 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 833% (93,190 vs 9,993 stars). Uptime Kuma is written in JavaScript under MIT; prometheus-operator is written in Go under Apache-2.0. Uptime Kuma has attracted 9% as many forks as stars, prometheus-operator 39%. prometheus-operator 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 | prometheus-operator | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 10.0K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Go |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 8.7K | ⑂ 3.9K |
| 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 prometheus-operator if
- You want the prometheus-operator feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and prometheus-operator 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 prometheus-operator
Prometheus Operator Overview The Prometheus Operator provides Kubernetes native deployment and management of Prometheus and related monitoring components. The purpose of this project is to simplify and automate the configuration of a Prometheus based monitoring stack for Kubernetes clusters. The Prometheus operator includes, but is not limited to, the following features: Kubernetes Custom Resources : Use Kubernetes custom resources to deploy and manage Prometheus, Alertmanager, and related components. Simplified Deployment Configuration : Configure the fundamentals of Prometheus like versions, persistence…
read the full prometheus-operator overview →
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Frequently asked questions
Is Uptime Kuma or prometheus-operator more popular?
Uptime Kuma has 93,190 GitHub stars and prometheus-operator has 9,993. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and prometheus-operator free?
Both are open source. Uptime Kuma is licensed under MIT and prometheus-operator under Apache-2.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and prometheus-operator?
Uptime Kuma is written in JavaScript and prometheus-operator 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 prometheus-operator?
Choose Uptime Kuma if you want the larger community (93,190 stars) or its MIT licence terms. Choose prometheus-operator if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.