Punycode Converter

Convert international domain names between Unicode and ASCII-compatible Punycode format. Encode Unicode domains for DNS compatibility or decode Punycode back to readable international characters.

Domain Converter

Unicode Domain
0 characters
Punycode Output
0 characters
Punycode Input
0 characters
Unicode Output
0 characters

About Punycode

Punycode is a representation of Unicode with ASCII characters. It enables Internationalized Domain Names (IDN) by allowing non-ASCII characters in domain names while maintaining compatibility with existing DNS infrastructure.

Key Features

  • ASCII compatible with existing DNS systems
  • Reversible conversion back to original Unicode
  • Uses "xn--" prefix for encoded parts
  • Optimized for domain name encoding

Use Cases

  • International domain registration
  • Email address internationalization
  • Web browser URL handling
  • DNS server configuration
Only domain parts containing non-ASCII characters are encoded. ASCII-only parts remain unchanged.

Example Conversions

Unicode DomainPunycode
münchen.dexn--mnchen-3ya.de
北京.中国xn--1lqs71d.xn--fiqs8s
россия.рфxn--e1afmkfd.xn--p1ai
العربية.مصرxn--mgbh0fb.xn--wgbh1c
日本.jpxn--wgv71a.jp
café.comxn--caf-dma.com
naïve.frxn--nave-6pa.fr
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