Galen
Layout and functional testing framework for websites
Jscritic
Quickly check how well 3rd party script behaves.
Bower
A package manager for the web, created at Twitter
Apitizer
API mocking for client JavaScript applications
Thrill
Runs tests in many browsers.
Gremlins.js
Monkey testing library for web apps and Node.js
Screenlog.js
Bring console.log on the screen
Js Cover
JSCover is a tool that measures code coverage for JavaScript programs.
Hotel
Start apps from your browser and get local domains without editing /etc/hosts http://i.imgur.com/DrLjbIi.gif
Framer
Modern Prototyping Tool
Xv
:x: :heavy_check_mark: A beautifully simple and capable test runner
Pioneer
Integration Testing
Vorlonjs
A new, open source, extensible, platform-agnostic tool for remotely debugging and testing your JavaScript. Powered by node.js and socket.io
Nock
HTTP mocking and expectations library
Wire
A light, fast, flexible Javascript IOC container
Generator Mcfly
A Yeoman generator for scaffolding an application using angular, browserify, ionic and famous
JSHint
JSHint is a community-driven tool to detect errors in JavaScript code and enforce your team's coding conventions.