Top 4 products relevant to Testing, Visual Regression Testing, Automated Testing, and Browser Testing

JavaScript browser designed to functionally test websites your running locally.

Open Source

Synchronous JavaScript wrapper around the Java Selenium Webdriver API that eliminated the need for callbacks or promises. Doesn't include any testing framework; you simply use the Selenium Java API.

LiveDoc-mocha is a library for adding behavior using a language called Gherkin to the mocha testing library.

WD.js is a Node.js Webdriver/Selenium 2 client that implements the JSONWire protocol and offers Q promises with chaining and Yiwed generators to avoid nested callbacks. It also has Mocha integration.