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Oh Dear vs OneUptime: catalog facts
Oh Dear	OneUptime
Paid Paid plans with a 10-day free trial that needs no payment details.	Freemium Self-hosting is free; the hosted service has paid plans.
Web	Web, Self-hosted
Crawls whole sites for broken links, not just the homepage Uptime, SSL, DNS and cron checks in one tool	Monitoring, status pages and on-call in one tool Can be self-hosted
No permanent free plan Hosted only	Large platform that takes effort to run yourself Much of the feature set is aimed at teams rather than individuals
Hosted service	Self-hosted, Hosted service
Closed source	Open source
License not stated	License: Apache-2.0
Account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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