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What is Punycode Converter?

Convert internationalized domain names (IDN) to and from their Punycode representation. If you work with domains containing non-ASCII characters — like umlauts, Chinese characters, or Arabic script — this tool shows you the xn-- encoded form that DNS actually uses.

Getting Started

  1. 1Enter a Unicode domain name to get its Punycode form.
  2. 2Or paste a Punycode string (starting with xn--) to see the Unicode version.
  3. 3Copy the result.

What You Get

  • Unicode to Punycode encoding
  • Punycode to Unicode decoding
  • Handles full domain names with multiple labels
  • Shows the xn-- prefix used in DNS

Examples

  • German domain

    münchen.de encodes to xn--mnchen-3ya.de

  • Chinese domain

    例え.jp encodes to xn--r8jz45g.jp

Frequently Asked Questions

What is Punycode?

Punycode is an encoding that represents Unicode characters using only the ASCII characters allowed in domain names. It lets internationalized domain names work within the existing DNS infrastructure.

Why do internationalized domains need encoding?

DNS was designed for ASCII only. Punycode bridges the gap by encoding Unicode domains into ASCII-compatible form so they can be resolved by any DNS server.

Privacy First

All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.