A JavaScript library that breaks strings into their individual user-perceived characters (including emojis!)

Takes a string, such as "1,2,3-10,5-8" and turns it into an array of numbers

A simpler (and smaller) rewrite of Google Android's libphonenumber library in javascript

Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`

Codecs for numbers of different sizes and endianness

BigNumber library used in ethers.js.

extended POSIX-style sprintf

A module to create a set of unique numbers as fast as possible.

Read/write IEEE754 floating point numbers from/to a Buffer or array-like object

Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.

The RAW rational numbers library

JSON for humans and machines

traverse and transform objects by visiting every node on a recursive walk

Generate YouTube-like ids from numbers.

Full Excel style number formatting

Convert numbers to words in 135 locales with currency, ordinal, and BigInt support (TypeScript, ESM/CJS/UMD).

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif

ELEN - Efficient Lexicographic Encoding of Numbers. For JavaScript.

Small Utility for checking profanity (hindi and English).It supports functionality like detecting bad words and cleaning them.

Self-host the Tiro Devanagari Hindi font in a neatly bundled NPM package.