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gatus vs Uptime Kuma: catalog facts
gatus	Uptime Kuma
Free The software is free under its open-source licence. Hosting, hardware and external…	Free Free and open source under the MIT licence.
Linux, Self-hosted, Web	Windows, macOS, Linux, Web, Self-hosted
Checks are declared in one YAML file with conditions on status code, response time and body content, and…	Monitors HTTP, TCP, ping, DNS, Docker containers and more More than ninety notification services, including most chat apps
Configuration is file-based with no editing interface, so changes mean redeploying the config.	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: Apache-2.0	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 22, 2026	Official website Full listing and sources Checked September 21, 2026

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