punynode

An ES6/TypeScript port of punycode.js, providing robust Punycode and IDNA (Internationalized Domain Names in Applications) support for Node.js and browser environments.

Features

• Encode and decode Punycode strings
• Convert Unicode domain names and email addresses to ASCII (Punycode) and back
• UCS-2 encoding/decoding utilities

Installation

You can install punynode using your favorite package manager:

npm

npm install punynode

yarn

yarn add punynode

pnpm

pnpm add punynode

Usage

Importing

// ES6/TypeScript
import { encode, decode, toASCII, toUnicode, default as punynode } from 'punynode';

API

encode(input: string): string

Encodes a Unicode string to Punycode.

decode(input: string): string

Decodes a Punycode string to Unicode.

toASCII(domain: string): string

Converts a Unicode domain name or email address to ASCII (Punycode). Only the non-ASCII parts are converted.

toUnicode(domain: string): string

Converts a Punycode domain name or email address to Unicode. Only the Punycode parts are converted.

punynode.ucs2.encode(codePoints: number[]): string

Creates a string from an array of Unicode code points.

punynode.ucs2.decode(string: string): number[]

Splits a string into an array of Unicode code points.

Examples

import { encode, decode, toASCII, toUnicode, default as punynode } from 'punynode';

encode('mañana'); // 'maana-pta'
decode('maana-pta'); // 'mañana'
toASCII('mañana.com'); // 'xn--maana-pta.com'
toUnicode('xn--maana-pta.com'); // 'mañana.com'
punynode.ucs2.encode([0x1F600]); // '😀'
punynode.ucs2.decode('😀'); // [0x1F600]

License

MIT