[DEPRECATED] Accessibility auditing for React.js applications

Batch convert PDF files on Windows to .txt, .htm, .xml, or .tag format -- a text file that includes markup for accessibility tags

Ace by DAISY, an Accessibility Checker for EPUB

The A11y Machine is an automated accessibility testing tool which crawls and tests pages of any web application to produce detailed reports.

Accessibility audit tooling for the web (beta)

Runs a set of accessibility audits

This is a version of the WordPress Theme Unit Test tuned for more efficient accessibility testing.

Advanced javaScript color picker and color conversion / calculation (rgb, hsv, hsl, hex, cmyk, cmy, XYZ, Lab, alpha, WCAG 2.0, ...)

HTML tests for various uses, including HTML5accessibility.com and JAWS tests

A Visual Studio extension

A lightweight pipeline, locally or in Lambda, for scanning things like HTTPS, third party service use, and web accessibility.

Convert WebVTT file to JSON

Diagnostic.css is a stylesheet which allows the user to test for common errors in a page's markup

wcag parsing error bookmarklet

Automated testing for HTML5Accessibility.com

Accessibility testing in the browser and on the server.

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

A script to test the heading outline of a document

Web Accessibility Toolbar for Internet Explorer