Mathjs
An extensive math library for JavaScript and Node.js
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**).
Tiny Color
Fast, small color manipulation and conversion for JavaScript
Inversify Js
A powerful and lightweight inversion of control container for JavaScript & Node.js apps powered by TypeScript.
Big.js
A small, fast JavaScript library for arbitrary-precision decimal arithmetic.
Decimal.js
An arbitrary-precision Decimal type for JavaScript
Bignumber.js
A JavaScript library for arbitrary-precision decimal and non-decimal arithmetic
Datejs
Datejs is an open-source JavaScript Date Library.
Args.js
Create javascript functions with optional, default, grouped and named parameters.
Sprintf.js
sprintf.js is a complete open source JavaScript sprintf implementation.
Char Funk
a Unicode character utility for JavaScript
Ratio.js
Rational numbers for Javascript
String.js
Extra JavaScript string methods.
Classing Js
Brings the world of classical OOP to javascript
Timezone Js
Timezone-enabled JavaScript Date object. Uses Olson zoneinfo files for timezone data.
Date
Date() for humans
Numeral
A javascript library for formatting and manipulating numbers.