tota11y : an accessibility visualization toolkit that aims to reduce the friction of a11y testing
Maestro : Maestro is the easiest way to automate UI testing for your mobile app.
Diagnostic.css : Diagnostic.css is a stylesheet which allows the user to test for common errors in a page's markup.
Also : https://github.com/karlgroves/diagnostic.css
Site Valet : Web Tools for Quality, Accessibility, Standards Compliance.
Appium : Appium is an open source test automation framework for use with native, hybrid and mobile web apps.
It drives iOS and Android apps using the WebDriver...
The mobiReady testing tool evaluates mobile-readiness using industry best practices & standards.
