Punycode An encoding used to convert internationalized domain names (IDNs) to ASCII strings. Since many domain names contain non-ASCII characters (such as Chinese, Arabic, etc.), Punycode converts these characters to a string of printable ASCII characters for use on the Internet.
Punycode encoding uses a specific algorithm to convert characters in Unicode character sets to ASCII encoding starting with "xn--." For example, the Chinese domain name "Example. Test" is encoded as "xn--fsq.xn--zfr164b." This conversion enables browsers and servers to recognize and process domain names containing non-ASCII characters.
Punycode encoding/decoding tool provides users with an easy way to handle internationalized domain names, suitable for domain name registration, website development and online services.