A collection of useful tools for accessibility testing and debugging in the browser, online and desktop
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README.md

README.md

Accessibility Testing Tools

This is a collection of useful tools for accessibility testing and debugging. The earlier in the process you start using these, the better.

See also the accessibility section of my frontend-dev-bookmarks which contains many more resources.

Mac

Windows

CSS Diagnostics

Browser extensions (Chrome)

Browser extensions (Firefox)

See the full accessibility tree in Chrome

You can view a dump of the accessibility tree in Chrome by typing chrome://accessibility/ in the address bar.

Online tools

Color Contrast Checkers

Automated Accessibility Testing

Bookmarklets

Miscellaneous links