punycode

What is punycode?

The punycode npm package is a robust library for encoding and decoding Unicode with Punycode. It's useful for internationalization and handling Unicode domain names and email addresses.

What are punycode's main functionalities?

Encoding to Punycode

Converts a Unicode string to a Punycode string (ASCII). Mainly used for domain names.

punycode.encode('mañana') // => 'maana-pta'

Decoding from Punycode

Converts a Punycode string (ASCII) back to a Unicode string. Useful for displaying human-readable text.

punycode.decode('maana-pta') // => 'mañana'

Unicode to ASCII conversion for domain names

Converts a Unicode domain name to an ASCII-compatible encoding (ACE) domain name.

punycode.toASCII('español.example.com') // => 'xn--espaol-zwa.example.com'

ASCII to Unicode conversion for domain names

Converts an ASCII-compatible encoding (ACE) domain name back to a Unicode domain name.

punycode.toUnicode('xn--espaol-zwa.example.com') // => 'español.example.com'

Other packages similar to punycode

idna-uts46-hx

A library that implements IDNA (Internationalized Domain Names in Applications) to Punycode conversion using the latest Unicode version. It's similar to punycode but follows the IDNA 2008 protocol, which is more up-to-date compared to the IDNA 2003 protocol that punycode follows.

url-punycode

This package provides a simple API for converting between Unicode and Punycode in URLs. It's similar to punycode but is more focused on URL-specific transformations.