Classing Js
Brings the world of classical OOP to javascript
Typecast.js
Typecast.js :: Solving the simple problems
Char Funk
a Unicode character utility for JavaScript
Placeholder Shiv
Tiny polyfill for the placeholder form element attribute. Requires Prototype.js.
Core Lib
A port of the Ruby 1.9.3 corelib to coffeescript/javascript/node that conforms to rubyspec.org.
CSS3 Pie
A behavior for Internet Explorer allowing it to recognize and render various CSS3 box decoration properties
Klass
a utility for creating expressive classes in JavaScript
Ratio.js
Rational numbers for Javascript
Object.observe
Object.observe polyfill/shim trying to be compliant
Taggd
A tool to show and add tags to images
Selectivizr
Selectivizr is a JavaScript utility that emulates CSS3 pseudo-classes and attribute selectors in Internet Explorer 6-8.
Css3 Finalize
Tired of adding prefix for each broswer when it comes to the new css3 attributes?
Args.js
Create javascript functions with optional, default, grouped and named parameters.
Length.js
📏 JavaScript library for length units conversion.
Respond
A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)
Yepnope.js
An Asynchronous Conditional Resource Loader
Numeral
A javascript library for formatting and manipulating numbers.