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muffet vs Broken Link Check: catalog facts
muffet	Broken Link Check
Free Free and open source.	Freemium Free for up to 3,000 pages; advanced services are available.
Windows, macOS, Linux, Command line	Web
Fast concurrent crawling Fits easily into CI pipelines	No sign-up or download Shows where each broken link is in the HTML
Command line only, no graphical interface Focused on links rather than wider SEO or markup checks	Free version limited to 3,000 pages
Downloadable app	Web application
Open source	Closed source
License not stated	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.