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LinkChecker vs Broken Link Check: catalog facts
LinkChecker	Broken Link Check
Free Free and open source under the GPL.	Freemium Free for up to 3,000 pages; advanced services are available.
Windows, macOS, Linux, Command line	Web
Recursive, multithreaded crawling of whole sites Many output formats including CSV, XML, SQL and sitemap graphs	No sign-up or download Shows where each broken link is in the HTML
Command-line only, no graphical interface The PyPI release may lag behind the latest code	Free version limited to 3,000 pages
Downloadable app	Web application
Open source	Closed source
License: GPL	License not stated
No account needed	No account needed
Not stated if it works offline	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.