IDN Punnycode converter

Easily convert IDN to Punnycode and back.

Tool: IDN/Punnycode
Type: Domain Conversion

IDN Punnycode converter

Convert IDN/Punnycode
Paste IDN domain or Punnycode to convert
Key Features
  • Convert IDN to Punnycode
  • Convert Punnycode to IDN
  • Support all languages
  • One-click copy results
  • No registration required

How to Use

1
Enter Domain

Paste IDN or Punnycode domain

2
Select Type

Choose conversion direction

3
Convert

Click Convert button

4
Copy Result

One-click copy

Common Examples

IDN Domain Punnycode Language
münchen.de xn--mnchen-3ya.de German
中国.中国 xn--fiqs8s.xn--fiqs8s Chinese
россия.рф xn--h1alffa9f.xn--p1ai Russian
日本.jp xn--wgv71a.jp Japanese
إختبار.إختبار xn--kgbechtv.xn--kgbechtv Arabic
ไทย.ไทย xn--o3cw4h.xn--o3cw4h Thai

Understanding IDN & Punnycode

What is IDN?

IDN (Internationalized Domain Names) allows domain names to contain non-ASCII characters like accented letters and symbols from various languages and scripts. Enables domains in Chinese, Arabic, Russian, and more.

What is Punnycode?

Punnycode is the ASCII-compatible encoding used to represent Unicode characters in domain names. It converts international characters to ASCII strings starting with "xn--" for system compatibility.

Why Convert?

Browsers display IDN domains visually while DNS uses Punnycode internally. Converting between formats helps with registration, debugging, and DNS configuration.

Supported Scripts

Supports all Unicode scripts: Latin (German, French), Cyrillic (Russian), CJK (Chinese, Japanese, Korean), Arabic, Hebrew, Thai, and many more.

Perfect For

Domain Registration

Registrars require Punnycode for international domain registration. Convert domains for proper registration forms.

DNS Configuration

DNS records require Punnycode format. Convert to setup DNS correctly for international domains.

Technical Debugging

Debug domain issues and understand how international domains are handled in systems.

Email Configuration

Configure email servers with international domain names using proper Punnycode format.

Why Choose Our Tool?

⚡
Instant Conversion

Real-time processing

🌍
All Languages

Supports all scripts

🎯
Accurate Results

Standard encoding

📋
Easy Copy

One-click copying

📱
Mobile Friendly

Works everywhere

🆓
100% Free

No registration

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Complete Guide to IDN & Punnycode

Understanding Internationalized Domain Names

Internationalized Domain Names (IDN) enable internet domains to contain characters from any language or script. Instead of being limited to ASCII letters (a-z, 0-9, and hyphen), IDNs allow accented characters, non-Latin scripts, and symbols. This makes the internet more accessible globally but requires special encoding for technical compatibility.

The Role of Punnycode

Punnycode is an encoding standard (RFC 3492) that converts Unicode characters to ASCII-compatible strings. The converted domain starts with "xn--" followed by encoded characters. For example, [translate:münchen.de] becomes xn--mnchen-3ya.de. This allows international domains to work with existing DNS systems that only understand ASCII.

How Browsers Display IDN

When you type an international domain in your browser, it displays the readable form (IDN) in the address bar. Behind the scenes, the browser converts it to Punnycode for DNS queries. This gives users a native language experience while maintaining technical compatibility with worldwide DNS infrastructure.

Common IDN Examples by Language

  • German: [translate:münchen.de] → xn--mnchen-3ya.de
  • Chinese: [translate:中国.中国] → xn--fiqs8s.xn--fiqs8s
  • Russian: [translate:россия.рф] → xn--h1alffa9f.xn--p1ai
  • Japanese: [translate:日本.jp] → xn--wgv71a.jp
  • Arabic: [translate:إختبار.إختبار] → xn--kgbechtv.xn--kgbechtv

Why Conversion Matters

Domain registrars typically require Punnycode format for registration. DNS records use Punnycode internally. Email servers and other technical systems work with Punnycode. Understanding conversion helps with domain management, debugging connectivity issues, and working with international domain infrastructure.

Pro Tip: Always verify the Punnycode version when registering an international domain to ensure you're working with the correct encoding that registrars and DNS systems expect.

Frequently Asked Questions

IDN is the human-readable format with international characters. Punnycode is the ASCII-encoded version. IDN is what users see; Punnycode is what DNS systems use internally.
The "xn--" prefix is a standard marker indicating ASCII-compatible encoding. It signals that the following text is Punnycode-encoded Unicode content.
Yes! IDN supports all Unicode scripts: Latin, Cyrillic, Arabic, CJK (Chinese, Japanese, Korean), Thai, Hebrew, and many more.
Most registrars accept both IDN and Punnycode, but many registration forms require Punnycode format for technical compatibility. Always check your registrar's requirements.
Yes! You can convert from IDN to Punnycode and back to IDN perfectly. The conversion is completely reversible without data loss.
Yes! Most registrars now support IDN domain registration. Use this tool to convert your desired name to Punnycode before checking availability.
Yes! Similar-looking characters in different scripts can create homoglyphs (spoofing). Browsers use safety measures to prevent phishing via lookalike domains.
Yes! Our IDN/Punnycode Converter is completely free with no hidden fees, premium features, or registration requirements.

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