A package manager for the web, created at Twitter
Keep multiple browsers & devices in sync when building websites. http://browsersync.io
BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.
Navigation scripting & testing utility for PhantomJS and SlimerJS
Monkey testing library for web apps and Node.js
Start apps from your browser and get local domains without editing /etc/hosts http://i.imgur.com/DrLjbIi.gif
Yeoman - a set of tools for automating development workflow
Modern Prototyping Tool
Image tracking, Location Based AR, Marker tracking. All on the Web.
Holder renders image placeholders entirely on the client side.
Visual/CSS regression testing with PhantomJS
Browser compilation library – a build tool for applications that run in the browser