Object.observe
Object.observe polyfill/shim trying to be compliant
Css3 Finalize
Tired of adding prefix for each broswer when it comes to the new css3 attributes?
Sugar
A Javascript library for working with native objects.
jQuery Number
Easily format numbers for display use. Replace numbers inline in a document, or return a formatted number for other uses.
Klass
a utility for creating expressive classes in JavaScript
Big.js
A small, fast JavaScript library for arbitrary-precision decimal arithmetic.
Store
A better way to use localStorage and sessionStorage
Core Lib
A port of the Ruby 1.9.3 corelib to coffeescript/javascript/node that conforms to rubyspec.org.
Placeholder Shiv
Tiny polyfill for the placeholder form element attribute. Requires Prototype.js.
Taggd
A tool to show and add tags to images
Args.js
Create javascript functions with optional, default, grouped and named parameters.
CSS Parent Selector
CSS4 parent selector based on jQuery
Flexie
Legacy support for the CSS3 Flexible Box Model
Console.message
Console messages for cool kids
Sprintf.js
sprintf.js is a complete open source JavaScript sprintf implementation.
Auto Numeric
autoNumeric is a jQuery plugin that automatically formats currency (money) and numbers as you type on form inputs. It supports most International numeric formats and currency signs including those used in Europe, North and South America, Asia and India (lakhs**).
Length.js
📏 JavaScript library for length units conversion.