Punycode Encoder

Convert one Unicode label to an xn-- ASCII-compatible label using the RFC 3492 Punycode algorithm.

Unicode domain label (one label, no dots)

ASCII-compatible label

—Raw RFC 3492 Punycode payload. The xn-- prefix identifies an ASCII-compatible encoded IDN label.

How to use this Punycode Encoder

Encode a Unicode domain label as an ASCII-compatible Punycode label. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.