head to head · open source
Uptime Kuma vs Checkmate
Uptime Kuma has 93,190 GitHub stars, 8,655 forks, 805 open issues and last shipped yesterday. Checkmate has 11,020 stars, 1,234 forks, 114 open issues and last shipped 3 days ago. Uptime Kuma leads on adoption by 746% (93,190 vs 11,020 stars). Uptime Kuma is written in JavaScript under MIT; Checkmate is written in TypeScript under AGPL-3.0. Uptime Kuma has attracted 9% as many forks as stars, Checkmate 11%. Uptime Kuma 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 | Checkmate | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 11K |
| License | MIT | AGPL-3.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-11-02 | 2026-10-31 |
| Forks | ⑂ 8.7K | ⑂ 1.2K |
| 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 Checkmate if
- You want the Checkmate feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and Checkmate 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 Checkmate
🇺🇸 English 🇸🇦 العربية 🇪🇸 Català 🇨🇿 Čeština 🇩🇪 Deutsch 🇪🇸 Español 🇫🇮 Suomi 🇫🇷 Français 🇮🇹 Italiano 🇯🇵 日本語 🇧🇷 Português (Brasil) 🇷🇺 Русский 🇹🇭 ไทย 🇹🇷 Türkçe 🇺🇦 Українська 🇻🇳 Tiếng Việt 🇨🇳 简体中文 🇹🇼 繁體中文 Checkmate An open source uptime and infrastructure monitoring application This repository contains both the frontend and the backend of Checkmate, an open source, self hosted monitoring tool for tracking server hardware, uptime, response times, and incidents in real time with beautiful visualizations. Checkmate regularly checks whether a server/website is accessible and performs…
read the full Checkmate overview →
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Frequently asked questions
Is Uptime Kuma or Checkmate more popular?
Uptime Kuma has 93,190 GitHub stars and Checkmate has 11,020. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and Checkmate free?
Both are open source. Uptime Kuma is licensed under MIT and Checkmate under AGPL-3.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and Checkmate?
Uptime Kuma is written in JavaScript and Checkmate 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 Checkmate?
Choose Uptime Kuma if you want the larger community (93,190 stars) or its MIT licence terms. Choose Checkmate if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.