yepnope.js : A Conditional Loader For Your Polyfills!
Logerr : Experimenting with window.onerror, trying to make JavaScript debugging easy.
What does it do?
Provides JavaScript error details in a readable format. ...
Mousetrap : A simple library for handling keyboard shortcuts in Javascript.
jQuery Masonry : A dynamic layout plugin for jQuery
The flip-side of CSS floats
enquire.js : A lightweight, pure JavaScript library for responding to CSS media queries.
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.