Checkmate vs Uptime Kuma
Checkmate and Uptime Kuma are both uptime monitoring software. Checkmate is open source under AGPL-3.0, with 11k GitHub stars. Uptime Kuma is open source under MIT, with 93k GitHub stars.
Which to pick
- Pick Checkmate when
- You want an Uptime Kuma-style monitor that also tracks server CPU, memory and disk.
- Pick Uptime Kuma when
- You want an easy, UptimeRobot-style monitor on your own server for a homelab or small business.
Side by side
A self-hosted monitor for website uptime, response times, server hardware and incidents, with status pages.
A self-hosted monitoring tool that checks HTTP, TCP, ping, DNS, Docker and more, sends alerts through 90+ notification services and publishes status pages.
AGPL license, and hardware monitoring needs its separate agent.
Single-instance design, so it does not monitor from multiple locations or scale to very large numbers of checks.
Usable
Production-ready
Self-hosted server (both)
TypeScript, JavaScript and MongoDB
JavaScript, Vue, Node.js, SQLite and Socket.IO
Open source, AGPL-3.0 (network copyleft)
Open source, MIT (permissive)
Use inside your business is unrestricted. If you change it and let customers use it over the internet, you must publish your changes.
You can build it into a product you sell, as long as you keep its copyright notice.
11k GitHub stars
93k GitHub stars
Established: started 2 years ago, latest release v3.13.1.
Established: started 5 years ago, latest release 2.5.9.
Other comparisons
More uptime monitors
Both sides were judged on 2026-11-03 from each project's README and GitHub data. License, age and popularity lines are worked out directly.