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.
Famous Engine - The Famous Engine is a free and open source JavaScript rendering engine.
Annotable - Ultimate image annotation & markup tool
Chart.js - Easy, object oriented client side graphs for designers and developers.
Xnapper - Take beautiful screenshots instantly