IDN-encode Text

Encode Unicode domain names and internationalized text to ASCII Punycode format.

IDN Examples

German Domain

Convert a German domain with an umlaut to its IDN (Punycode) version.

Try Now

Chinese Domain

Encode a Chinese domain name to ASCII-compatible format.

Try Now

Emoji Domain

Convert a modern emoji-based domain to its Punycode equivalent.

Try Now

Mixed Script

Handle mixed scripts and accented characters in domain labels.

Try Now

Comprehensive Guide to IDN Encoding

What is IDN Encoding?

IDN Encoding (Internationalized Domain Name encoding) is the process of converting domain names containing non-ASCII characters (like accents, Chinese characters, or emojis) into a format that the existing Domain Name System (DNS) can understand. This format is known as Punycode.

DNS originally only supported a limited set of ASCII characters (A-Z, 0-9, and hyphens). To allow for global, localized domain names, the IDNA (Internationalizing Domain Names in Applications) standard was developed, which uses Punycode to represent Unicode strings as ASCII.

Why use an IDN Encoder?

  • DNS Compatibility: Ensure your international domain works with standard DNS servers and registrars.
  • Email Configuration: Correctly configure mail servers (MX records) for IDN domains.
  • Web Development: Properly handle internationalized URLs in your code and server configurations.
  • SEO Optimization: Use the Punycode version of domains in technical SEO files like sitemaps and robots.txt when required.
Privacy Note: This tool operates entirely on the client side using JavaScript. Your input data is never sent to our servers, ensuring your domain names and text remain completely private.