BrowserSwarm - A tool that automates JavaScript testing across browsers

BrowserSwarm is a partnership by Microsoft, Sauce Labs and the open source team of appendTo that helps developers automate how they test frameworks & libraries across browsers. It’s powered through the cloud, allowing developers to save time setting-up multiple browser or device testing environments and precious server resources.

BrowserSwarm connects directly to your GitHub code repo. When your team makes updates, BrowserSwarm automatically runs your project's Unit Test Suite and supports Frameworks, like QUnit, in the cloud using SauceLabs browser automation.

BrowserSwarm is meant to help the framework authors that build stuff for developers by reducing the time spent testing.
 
Check the original post by Microsoft here.
 
Site: BrowserSwarm