Sa11y, the accessibility quality assurance assistant | Accessibility Checker


Sa11y is an accessibility quality assurance tool that visually highlights common accessibility and usability issues. Geared towards content authors, Sa11y straightforwardly identifies errors or warnings at the source with a simple tooltip on how to fix them.

Sa11y works in Preview mode.


  • Over 50 checks.
  • Concise tooltips explain issues right at the source.
  • Automatically checks content once the page has loaded.
  • Highly customizable. Turn off or hide irrelevant checks.
  • Content editors can temporarily dismiss warnings.
  • 100% free and open source.
  • Available in English, French, Polish, Ukrainian, German, and Swedish.
  • Supports Multisite: create global settings and custom defaults for all websites on your network.

Visit the project website for a demo or to learn more!


  • Logged-in view with Sa11y enabled. Sa11y detected two issues: a non-descript "learn more" link and a skipped heading.
  • The Advanced Settings page where admins can customize different settings.


28 Ιουνίου 2023
Pretty sweet plugin. Being able to limit the area of focus is massive for presetting and allowing someone else to get a focused view of issues with their content. It doesn't end there as there is a massive array of configuration options one can setup to help narrow the focus of less technical users (or declutter their own experience).I also really like how it checks custom post types as well as regular. The UI is pretty sweet and easy on the eyes. The links to documentation in the descriptions is welcomed. One might say it should link to the official docs, but that can be a lot to take in regardless of ones technical expertise. So the fact it links to a11y-101 instead is nice to see.
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Σύνοψη αλλαγών


  • Upgrade to Sa11y 3.0.3
  • Added Spanish and several machine translations including: Czech, Danish, Greek, Estonian, Finnish, Indonesian, Italian, Japanese, Lithuanian, Latvian, Norwegian (Bokmål), Dutch, Portuguese (Brazil), Portuguese (Portugal), Romanian, Slovenian, Turkish, Chinese (Simplified)
  • New ruleset to flag non-descript DOI (digital object identifier) links.
  • Check out the latest release notes for Sa11y 3.0.3!


  • Bug fixes.


  • Upgrade to Sa11y 3!
  • Content editors now have the ability to temporarily dismiss warnings, preview pages with various colour filters, and new admin settings.
  • German translation added.
  • Multisite support added. Multisite admins can create global exclusions and provide custom defaults.
  • Check out the latest release notes for Sa11y 3.0!




  • Tested with WordPress 6.0
  • Upgrade to Sa11y 2.2.4
  • Refactoring. Sa11y’s main panel is created after the page has fully loaded to avoid conflicting JavaScript.


  • Upgrade to Sa11y 2.2.3
  • Sa11y’s main panel is now 33% smaller.
  • Added skip to previous issue shortcut: alt + w or alt + <


  • Upgrade to Sa11y 2.2.2
  • Added Polish, Ukrainian, and French (Canadian) translations. This does not include the “Advanced Settings” page at this time. The language will automatically change based on the page language.
  • Name change: Ryerson University is now Toronto Metropolitan University!


  • Minor fixes.


  • Upgrade to Sa11y 2.1.9


  • Upgrade to Sa11y 2.1.8


  • Bug fix.


  • Bug fix.


  • Initial release of official WordPress plugin.