Fast, easy and reliable testing for anything that runs in a browser.
Keep multiple browsers & devices in sync when building websites. http://browsersync.io
The streaming build system
Reactive libraries for Angular
Compare code instead of text.
BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.
jasmine-ajax - A library for faking Ajax responses in your Jasmine suite.
Fast, reliable, and secure dependency management.
Creates Photoshop-like guides and rulers interface on a web page
Bluebird is a full featured promise library with unmatched performance.
A little tool that inserts a layout grid in web pages, allows you to hold it in place, and toggle between displaying it in the foreground or background.