DeveloperSpace
REPO/PACKAGE MOVED - Storybook addon to help, improving accessibility within you're react components.
CSS Accessibility Validator for your HTML
Use HTML codesniffer to grade accessibility
Ruby client for the access-lint-server JSON API
Simple chrome extension to notify websites of your accessibility requirements.
EIII accessibility testing bookmarklet
A public space for accessibility issues with GitHub, not managed by GitHub.
Web accessibility (a11y) observatory and monitoring tool (based on Tanaguru)
flagging accessibility concerns
A web service to check Accessibility on your sites using accesslint-cli
a11y testing plugin for Intern