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Dead Link Checker vs LinkChecker: catalog facts
Dead Link Checker	LinkChecker
Freemium Manual checks are free; scheduled automatic checks require a paid subscription.	Free Free and open source under the GPL.
Web	Windows, macOS, Linux, Command line
Free manual checks of whole sites or single pages Can check multiple sites in one run	Recursive, multithreaded crawling of whole sites Many output formats including CSV, XML, SQL and sitemap graphs
Automated checking is paid Scheduling and multi-site reports need an account	Command-line only, no graphical interface The PyPI release may lag behind the latest code
Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL
No account needed	No account needed
Needs internet	Not stated if it works offline
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.