Grunt
Grunt: The JavaScript Task Runner
Chai
BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.
Treant Js
Treant.js - javascript library for drawing tree diagrams
Prettydiff
Compare code instead of text.
Galen
Layout and functional testing framework for websites
Angular Js Boilerplate
Simple AngularJS Boilerplate to kick start your new project with SASS support and Gulp watch/build tasks
Platform
Reactive libraries for Angular
Nightwatch
UI automated testing framework based on node.js and selenium webdriver
Blanket
blanket.js is a simple code coverage library for javascript. Designed to be easy to install and use, for both browser and nodejs.
Bluebird
Bluebird is a full featured promise library with unmatched performance.
Shipit
Universal automation and deployment tool written in JavaScript.
Holder
Holder renders image placeholders entirely on the client side.
Gulp
The streaming build system
Yeoman
Yeoman - a set of tools for automating development workflow
Pioneer
Integration Testing
Blaver
A JavaScript library built on top of the Faker.JS library. It generates massive amounts of fake data in the browser and node.js.
Stacktrace.js
Framework-agnostic, micro-library for getting stack traces in all web browsers