Text_Highlighter : Provides functionality to perform syntax highlighting for different file formats.
css3-mediaqueries-js : make CSS3 Media Queries work in all browsers (JavaScript library)
Tracery : A story-grammar generation library for javascript. Write grammar objects, get generative stories.
meSpeak.js : meSpeak.js (modulary enhanced speak.js) is a 100% client-side JavaScript text-to-speech library
DOMAssistant : The modular lightweight JavaScript library, with CSS selectors, event handling, AJAX and complete Unicode support
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.