Moment
Parse, validate, manipulate, and display dates in javascript.
Dayjs
⏰ Day.js 2KB immutable date library alternative to Moment.js with the same modern API
Mathjs
An extensive math library for JavaScript and Node.js
Inversify Js
A powerful and lightweight inversion of control container for JavaScript & Node.js apps powered by TypeScript.
Numeral
A javascript library for formatting and manipulating numbers.
Bignumber.js
A JavaScript library for arbitrary-precision decimal and non-decimal arithmetic
Decimal.js
An arbitrary-precision Decimal type for JavaScript
Big.js
A small, fast JavaScript library for arbitrary-precision decimal arithmetic.
Tiny Color
Fast, small color manipulation and conversion for JavaScript
Underscore String
String manipulation extensions for Underscore.js javascript library.
Xregexp
Extended JavaScript regular expressions
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**).
Datejs
Datejs is an open-source JavaScript Date Library.
Sprintf.js
sprintf.js is a complete open source JavaScript sprintf implementation.
String.js
Extra JavaScript string methods.
Timezone Js
Timezone-enabled JavaScript Date object. Uses Olson zoneinfo files for timezone data.
Date
Date() for humans