punycode to unicode

Decode Punycode-encoded domain names back into their original Unicode characters for easy reading.

Punycode to Unicode Converter transforms ASCII-compatible encoded domain names back into their human-readable Unicode form. When internationalized domain names are registered, they are stored in Punycode format (prefixed with xn--) to comply with DNS restrictions. This tool reverses that encoding so you can see the actual characters the domain represents.

This converter is invaluable for cybersecurity professionals investigating phishing attacks that exploit internationalized domain name homographs. By decoding suspicious Punycode domains, analysts can identify whether a domain uses look-alike characters from different Unicode scripts to impersonate a legitimate website.

Web developers and system administrators also benefit from this tool when debugging DNS records, configuring SSL certificates for international domains, or verifying that email systems properly handle non-ASCII domain names in addresses. Understanding the relationship between Punycode and Unicode is essential for building globally accessible web applications.

The decoding is performed entirely in your browser using a client-side implementation of the Bootstring algorithm specified in RFC 3492. No data is sent to any external server, ensuring complete privacy for your domain lookups and security investigations.