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Checkmate vs Uptime Kuma: catalog facts
Checkmate	Uptime Kuma
Free Free and open source to self-host.	Free Free and open source under the MIT licence.
Web, Self-hosted	Windows, macOS, Linux, Web, Self-hosted
Combines uptime checks with server hardware monitoring Docker and Helm chart deployment options	Monitors HTTP, TCP, ping, DNS, Docker containers and more More than ninety notification services, including most chat apps
You have to host and maintain it yourself No hosted version described in the research	Runs from one place, so it cannot tell you about regional outages NFS and other network filesystems are explicitly unsupported for its data
Self-hosted	Self-hosted
Open source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.