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Checkmate vs gatus: catalog facts
Checkmate	gatus
Free Free and open source to self-host.	Free The software is free under its open-source licence. Hosting, hardware and external…
Web, Self-hosted	Linux, Self-hosted, Web
Combines uptime checks with server hardware monitoring Docker and Helm chart deployment options	Checks are declared in one YAML file with conditions on status code, response time and body content, and…
You have to host and maintain it yourself No hosted version described in the research	Configuration is file-based with no editing interface, so changes mean redeploying the config.
Self-hosted	Self-hosted
Open source	Open source
License not stated	License: Apache-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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