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IDN Punycode Converter

Convert internationalized domain names (IDN) to Punycode and vice versa

IDN
Punycode
Domain
Unicode
DNS

About IDN Punycode Conversion

What is IDN?

Internationalized Domain Names (IDN) allow domain names to contain Unicode characters from various languages and scripts, enabling users to register domains in their native languages like Arabic, Chinese, Japanese, or Cyrillic. If you need to encode or decode URLs for web development, our URL Encoder/Decoder tool can help you format URLs safely and correctly.

What is Punycode?

Punycode is an encoding method that converts Unicode characters to ASCII, making IDN domains compatible with the Domain Name System (DNS). Punycode domains start with "xn--" prefix. For advanced Unicode manipulation and spoofing, try our Unicode Text Spoofer.

Common Examples

  • みんな.jp → xn--q9jyb4c.jp
  • пример.рф → xn--e1afmkfd.xn--p1ai
  • 测试.中国 → xn--0zwm56d.xn--fiqs8s
  • δοκιμή.gr → xn--jxalpdlp.gr

Use Cases

  • Domain registration and management
  • DNS configuration and troubleshooting
  • Web development with international domains
  • Email system configuration
  • SEO for multilingual websites

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Privacy & Security

All conversions happen locally in your browser. No domain names or URLs are sent to our servers, ensuring your data stays private and secure.

Frequently Asked Questions (FAQ)

What is the difference between IDN and Punycode?
IDN (Internationalized Domain Names) are domain names that contain Unicode characters from various languages. Punycode is the ASCII-compatible encoding used to represent these Unicode characters in the DNS system.
Why do some domains start with "xn--"?
The "xn--" prefix indicates that the domain name is encoded in Punycode. This prefix helps DNS systems identify and properly handle internationalized domain names.
Can I use Unicode domain names directly in browsers?
Yes, modern browsers automatically convert Unicode domain names to Punycode when making DNS requests. However, the underlying DNS system still uses the Punycode representation.
Are IDN domains supported by all email systems?
Most modern email systems support IDN domains, but some older systems may require the Punycode representation. It's best to test compatibility with your specific email infrastructure.
How do I register an IDN domain?
You can register IDN domains through domain registrars that support internationalized domains. The registration process typically involves converting your desired Unicode domain to Punycode.
Can I convert full URLs with paths and parameters?
Yes, this tool can handle full URLs. It will convert only the domain portion to/from Punycode while preserving the path, query parameters, and other URL components. If you need to encode or decode the entire URL for safe transmission, use our URL Encoder/Decoder tool for proper formatting.
What languages are supported for IDN conversion?
IDN supports virtually all Unicode scripts and languages, including Arabic, Chinese, Japanese, Korean, Cyrillic, Greek, Hebrew, Thai, and many others.

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