ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
Screely - Screely instantly generates dribbble-ready images. Simply upload your screenshot and we'll do the rest.
Chart.js - Easy, object oriented client side graphs for designers and developers.
Screenzy - A simple screenshot beautifier
Backbone.js - Give your JS App some Backbone with Models, Views, Collections, and Events
Xnapper - Take beautiful screenshots instantly