ConverterHub

Punycode Converter

Enter one domain label to encode to Punycode.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

Domain names were originally restricted to ASCII characters, which left no room for the world’s non-Latin scripts. Punycode, defined in RFC 3492, solves this with a “bootstring” algorithm that encodes any Unicode label — say, a domain name containing Turkish, Arabic or Chinese characters — into an ASCII-only string prefixed with xn--, which browsers and DNS servers then decode back to the original Unicode text.

This is the mechanism behind every internationalized domain name (IDN) you see redirect to an “xn--” address in your browser bar. This calculator encodes a single domain label to its Punycode form, a task that’s useful for domain registrars, web developers and DNS administrators working with non-English domain names and needing to verify or generate the ASCII form manually.

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