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Sa11y vs Accessibility Checker: catalog facts
Sa11y	Accessibility Checker
Free Free and open source.	Freemium Free testing features are available; Equalize Digital also sells paid options.
Web, Self-hosted	Self-hosted
Shows issues in place with plain fix instructions Over 80 checks with rules you can switch off	Reports appear directly in the WordPress editor Checks run as content changes
Aimed at content issues, not a full code audit Needs to be added to a site or CMS by a developer	Works only with WordPress Automated checks cannot catch every accessibility issue
Self-hosted	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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