Browsershots : Browsershots makes screenshots of your web design in different operating systems and browsers. It is a free open-source online web application providi...
Babel : Babel will turn your ES6+ code into ES5 friendly code, so you can start using it right now without waiting for browser support.
tracing-framework : Rich tools for instrumenting, analyzing, and visualizing web apps.
PhantomJS : PhantomJS is a headless WebKit with JavaScript API. It has fast and native support for various web standards: DOM handling, CSS selector, JSON, Canvas...
JavaScript End to End Testing Framework. Fast, easy and reliable testing for anything that runs in a browser.