Namespace.js : Namespace.js is a small javascript script which provide namespacing utilities. It is framework independent. It also allows you to remotely include fil...
Closure Tools : The Closure Compiler, Library, Templates, and Stylesheets help developers create powerful and efficient JavaScript.
JavaScript Templates : For web application developers, the '''JavaScript Templates''' engine from TrimPath is a lightweight APL / GPL open-source component that lets you hav...
Timeline : Beautifully crafted timelines that are easy, and intuitive to use.
jQuery Masonry : A dynamic layout plugin for jQuery
The flip-side of CSS floats
Rainbow is a code syntax highlighting library written in Javascript.
It was designed to be lightweight (1.4kb), easy to use, and extendable.
It is completely themable via CSS.