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