jquip : Smaller, Lighter, Faster, more modular jQuery - include only the parts you want! Don't use it, Don't include it.
TraceKit : Not all browsers support stack traces on error objects, but TraceKit squeezes out as much useful information as possible and normalizes it.
Aloha Editor : Aloha Editor is an open source WYSIWYG editor that can be used in webpages. Aloha Editor aims to be easy to use and fast in editing, and allows advanc...
EnhanceJS : EnhanceJS is a new Javascript framework designed to improve the application of Progressive Enhancement by first testing browser capabilities for key J...
JavaScript Templates : For web application developers, the '''JavaScript Templates''' engine from TrimPath is a lightweight APL / GPL open-source component that lets you hav...
Sammy is a tiny javascript framework built on top of jQuery, It's RESTful Evented Javascript.