What is the Punycode tool?

Convert internationalized domain names. This free online tool is available at NumbersChecker with no login required.

Is the Punycode tool free?

Yes, the Punycode tool is completely free to use at NumbersChecker. No account or installation is needed — results are instant.

How do I use the Punycode tool?

Enter your input into the form at https://numberschecker.com/tool/punycode, click Run, and the result appears instantly. Click any result value to copy it to your clipboard.

Is there an API for the Punycode tool?

Yes. Send a POST request to https://numberschecker.com/api/punycode with your input as a JSON body. The API is free and requires no authentication.

Encoding idndomainunicode

Punycode

Convert internationalized domain names.

About the Punycode Tool

Convert internationalized domain names. This free online tool runs entirely in your browser — no login, no installation, and no data is stored.

This tool is part of the Encoding category on NumbersChecker. Browse all Encoding tools or explore all 139 tools.

Related: idn · domain · unicode

API usage

POST /api/punycode
Content-Type: application/json

{
  "text": "your input here"
}