Brjs
BladeRunnerJS (BRJS) is an open source development toolkit and framework for modular construction of large single-page HTML5 apps. It consists of a set of conventions, supporting tools and micro-libraries that make it easy to develop, test, deploy and maintain complex JavaScript apps.
Wire
A light, fast, flexible Javascript IOC container
Blanket
blanket.js is a simple code coverage library for javascript. Designed to be easy to install and use, for both browser and nodejs.
Chai
BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.
Screenlog.js
Bring console.log on the screen
Monitor.io
remote monitoring and debugging for socket.io
Jscritic
Quickly check how well 3rd party script behaves.
Boomerang
End user oriented web performance testing and beaconing
Thrill
Runs tests in many browsers.
Apitizer
API mocking for client JavaScript applications
Jquery Mockjax
The jQuery Mockjax Plugin provides a simple and extremely flexible interface for mocking or simulating ajax requests and responses
Xv
:x: :heavy_check_mark: A beautifully simple and capable test runner
Mimosa
A lightning-fast, modular, next generation browser development tool.
Generator Mcfly
A Yeoman generator for scaffolding an application using angular, browserify, ionic and famous
Quixote
CSS unit testing
Intern
A next-generation code testing stack for JavaScript.
Holder
Holder renders image placeholders entirely on the client side.