head to head · open source
Uptime Kuma vs calico
Uptime Kuma has 93,190 GitHub stars, 8,655 forks, 805 open issues and last shipped yesterday. calico has 7,409 stars, 1,619 forks, 279 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 1,158% (93,190 vs 7,409 stars). Uptime Kuma is written in JavaScript under MIT; calico is written in Go under Apache-2.0. Uptime Kuma has attracted 9% as many forks as stars, calico 22%. calico 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 | calico | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 7.4K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Go |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 8.7K | ⑂ 1.6K |
| 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 calico if
- You want the calico 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 calico 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 calico
Calico Quickstart Docs Contribute Slack Releases 🐾 Welcome to Project Calico! Project Calico, created and maintained by [Tigera][tigera], is an open source project with an active development and user community. Calico Open Source has grown to be the most widely adopted solution for container networking and security, powering 8M+ nodes daily across 166 countries. 🌟 Why use Calico? Data Plane Choice : eBPF, standard Linux, Windows, and VPP — versatility in network solutions. Interoperability : Works across multiple distros, multiple clouds, bare metal, and VMs. Optimized Performance : Engineered for high speed…
read the full calico overview →
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Frequently asked questions
Is Uptime Kuma or calico more popular?
Uptime Kuma has 93,190 GitHub stars and calico has 7,409. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and calico free?
Both are open source. Uptime Kuma is licensed under MIT and calico under Apache-2.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and calico?
Uptime Kuma is written in JavaScript and calico 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 calico?
Choose Uptime Kuma if you want the larger community (93,190 stars) or its MIT licence terms. Choose calico if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.