Intern : Intern is a complete test system for JavaScript designed to help you write and run consistent, high-quality test cases for your JavaScript libraries a...
Enzyme : Enzyme is a JavaScript Testing utility for React that makes it easier to assert, manipulate, and traverse your React Components' output.
Greasemonkey : Greasemonkey is a Firefox extension that allows you to customize the way webpages look and function.
JSHint : This is JSHint, a tool that helps to detect errors and potential problems in your JavaScript code.
yepnope.js : A Conditional Loader For Your Polyfills!