aXe : Automated tool to find Accessibility defects on your web site by using the aXe Chrome extension. Drop the aXe on your accessibility defects! We believ...
Screenfly : Test Your Website at Different Screen Resolutions
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...
Maestro : Maestro is the easiest way to automate UI testing for your mobile app.
tota11y : an accessibility visualization toolkit that aims to reduce the friction of a11y testing
The mobiReady testing tool evaluates mobile-readiness using industry best practices & standards.