Big.js
A small, fast JavaScript library for arbitrary-precision decimal arithmetic.
Tiny Color
Fast, small color manipulation and conversion for JavaScript
Timezone Js
Timezone-enabled JavaScript Date object. Uses Olson zoneinfo files for timezone data.
Bignumber.js
A JavaScript library for arbitrary-precision decimal and non-decimal arithmetic
Nerdamer
a symbolic math expression evaluator for javascript
jQuery Number
Easily format numbers for display use. Replace numbers inline in a document, or return a formatted number for other uses.
Inversify Js
A powerful and lightweight inversion of control container for JavaScript & Node.js apps powered by TypeScript.
Xdate
A Modern JavaScript Date Library
Klass
a utility for creating expressive classes in JavaScript
Ratio.js
Rational numbers for Javascript
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**).
Extract Values
A simple helper to extract values from a string based on a pattern.
Typecast.js
Typecast.js :: Solving the simple problems
Char Funk
a Unicode character utility for JavaScript
Classing Js
Brings the world of classical OOP to javascript
Args.js
Create javascript functions with optional, default, grouped and named parameters.