TraceKit : Not all browsers support stack traces on error objects, but TraceKit squeezes out as much useful information as possible and normalizes it.
Firebug Lite : A JavaScript file you can insert into your pages to simulate the Firebug console in browsers that are not named Firefox.
Improv : A model-backed generative text grammar tool for javascript. Improv is similar to Tracery in that it can generate random, procedurally generated text r...
Vue Native : Vue Native is a framework to build cross platform native mobile apps using JavaScript
Protovis : Protovis composes custom views of data with simple marks such as bars and dots. Unlike low-level graphics libraries that quickly become tedious for vi...