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Monika vs UptimeRobot: catalog facts
Monika	UptimeRobot
Free Free and open source.	Freemium Free plan with 50 monitors; paid plans add more features.
Self-hosted, Command line	Web
Configuration in a single YAML file Alerts on slow responses as well as downtime	50 monitors on the free plan Wide range of check types, including ports and cron jobs
Command-line only, with no built-in dashboard You run and keep it online yourself	Hosted only Some features such as multi-location checks may need a paid plan
Downloadable app, Self-hosted	Hosted service
Open source	Closed source
License not stated	License not stated
No account needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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