IDN Converter
Convert IDN hostnames between Unicode (e.g. münchen.de) and Punycode ASCII (xn--…). Labels are checked against the 63-octet limit. Client-side only.
Input
Paste or type your content here…
Output
Enter a domain name to convert Punycode.
Frequently Asked Questions
What is Punycode?
An ASCII encoding of Unicode domain labels used in DNS (often shown as xn--…).
Full URLs?
A hostname or URL host is fine - path/query are stripped for conversion.