Punycode Converter

Last updated: 2026 · Free online tool

What is Punycode Converter?

Free online Punycode converter that translates internationalized domain names with Unicode characters to ASCII-compatible xn-- Punycode and decodes them back, supporting IDN encoding for browsers, email and DNS.

How to Use

1
Enter Input — Enter the data you want to convert.
2
View Result — Check the conversion result.
3
Copy — Copy the result to use it.

Frequently Asked Questions

A free online tool that bidirectionally converts between internationalized domain names and Punycode.

Yes, it is completely free.

No. All processing is done in the browser.

Yes, it is responsive and works on mobile devices.

Yes, it is based on static data and can be used offline.