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.

Raw RFC 3492 Punycode is not the same as full IDNA processing

This one-label tool exposes the algorithmic A-label payload boundary. Use IDN Domain Converter when domain mapping/validation semantics are required.