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Uptime Kuma vs HetrixTools: catalog facts
Uptime Kuma	HetrixTools
Free Free and open source under the MIT licence.	Freemium Free tier with 15 uptime and 32 blacklist monitors; paid plans add more.
Windows, macOS, Linux, Web, Self-hosted	Web
Monitors HTTP, TCP, ping, DNS, Docker containers and more More than ninety notification services, including most chat apps	Generous free tier for uptime and blacklist monitoring Checks from up to 12 locations
Runs from one place, so it cannot tell you about regional outages NFS and other network filesystems are explicitly unsupported for its data	Hosted only, with no self-hosted option Requires an account
Self-hosted	Web application, Hosted service
Open source	Closed source
License: MIT	License not stated
No account needed	Account needed
Works offline	Needs internet
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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