Punycode Converter

Convert between Unicode internationalized domain names (IDN) and their ASCII-compatible Punycode encoding (xn-- format). Supports full domains or individual labels. Runs entirely in your browser — nothing is sent to a server.

Domain Name (Unicode or Punycode)

Punycode (RFC 3492) converts international domain names into ASCII-compatible encoding (ACE) prefixed with xn--. Used by DNS to support non-Latin characters in domain names.

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Runs entirely in your browser · No data sent anywhere