Compare software

Accessibility CheckerPa11y
Freemium

Free testing features are available; Equalize Digital also sells paid options.

 Free

Free and open source.

Self-hosted Self-hosted, Command line
  • Reports appear directly in the WordPress editor
  • Checks run as content changes
  • Command-line tool for quick one-off accessibility checks
  • CI tool for testing a list of pages in builds
  • Works only with WordPress
  • Automated checks cannot catch every accessibility issue
  • Automated checks catch only part of all accessibility problems
  • The dashboard requires running your own server
Downloadable app 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

Checked September 24, 2026

Checked September 23, 2026

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