Punycode / IDN Converter: quick start guide

Everything you need for a first successful run: what to paste in, which option actually matters, and how to read the result.

Input Punycode / IDN Converter Output Runs 100% in your browser — your data never leaves your device.
Punycode / IDN Converter — Input → Output. Runs 100% in your browser — your data never leaves your device.

How to use

  1. Open the tool and paste your input into the left pane.
  2. Set only the options your task actually needs — the defaults are correct for most inputs.
  3. Read the result in the right pane; it updates as you type.
  4. Use Copy to take the result, or Download to save it as a file.
How to use · Punycode / IDN Converter 1 Paste your data intothe input box (or loadthe example). 2 Configure the optionsto match your targetformat or scenario. 3 Copy, download orinspect the output —it updates live as youtype.
How to use — 3

Examples

Internationalised domain names become xn-- labels; switch the direction to decode them back.

Input

münchen.de

Output — Results

münchen.de
→
xn--mnchen-3ya.de

Each non-ASCII label is prefixed with xn-- (the ACE prefix) per RFC 3492 / IDNA2008.
ASCII labels are left untouched.

Run

Description

Convert internationalised domain names to and from their xn-- ASCII form per RFC 3492.

Punycode / IDN Converter → · How to use → · Encoding Tools →

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