Toolzy

Punycode Converter

Convert internationalized domains between Unicode and ASCII punycode.

Input
Output

Convert Unicode domain names to ASCII punycode (xn--) and back, following RFC 3492.

How to use

  1. Choose To ASCII or To Unicode.
  2. Enter the domain name.
  3. Copy the converted domain.

Frequently asked questions

What is punycode?
An ASCII encoding (RFC 3492) that lets internationalized domain names use Unicode via an xn-- prefix.
Does it convert whole domains?
Yes. Each label between dots is converted, so subdomains and the TLD are handled together.

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