Prototype : Easy Ajax and DOM manipulation for dynamic web applications
RequireJS : RequireJS is a JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino ...
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...
Head JS : Load scripts like images. Use HTML5 and CSS3 safely. Target CSS for different screens, paths, states and browsers. Make it the only script in your HEA...
Push by Nickersoft : A compact, cross-browser solution for using the JavaScript Notifications API
A simple library for handling keyboard shortcuts in Javascript.