Yarn
Fast, reliable, and secure dependency management.
Rulers Guides.js
Creates Photoshop-like guides and rulers interface on a web page
Spa Eye
Backbone debugger for Firefox
Nightwatch
UI automated testing framework based on node.js and selenium webdriver
Phantom Css
Visual/CSS regression testing with PhantomJS
Jasmine Ajax
jasmine-ajax - A library for faking Ajax responses in your Jasmine suite.
Jasmine
DOM-less simple JavaScript testing framework
Js Cover
JSCover is a tool that measures code coverage for JavaScript programs.
Gulp
The streaming build system
Trace Kit
Attempts to create stack traces for unhandled JavaScript exceptions in all major browsers.
Angular Debaser
Just a better way to test AngularJS apps.
Pioneer
Integration Testing
JSHint
JSHint is a community-driven tool to detect errors in JavaScript code and enforce your team's coding conventions.
Protractor
E2E test framework for Angular apps
Csscritic
A lightweight framework for regression testing of Cascading Style Sheets
Stacktrace.js
Framework-agnostic, micro-library for getting stack traces in all web browsers
Hotel
Start apps from your browser and get local domains without editing /etc/hosts http://i.imgur.com/DrLjbIi.gif