IDN Converter Tool

Convert Internationalized Domain Names (IDN) to Punycode and vice versa. Our free IDN converter supports Unicode domains in Arabic, Chinese, Cyrillic, Hindi, and many other scripts, making international domains accessible across all systems.
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What is IDN (Internationalized Domain Names) ?

Internationalized Domain Names (IDN) are domain names that contain characters from non-ASCII scripts such as Arabic, Chinese, Cyrillic, Hindi, or other Unicode characters. Since the traditional DNS system only supports ASCII characters (a-z, 0-9, and hyphens), IDN domains are converted to Punycode—a special ASCII-compatible encoding—to work with existing internet infrastructure.

What is Punycode ?
Punycode is a encoding syntax used to convert Unicode characters into ASCII strings. It's defined in RFC 3492 and allows internationalized domain names to be represented using only ASCII characters. Punycode strings always start with "xn--" followed by the encoded characters.

IDN Converter Features

Bidirectional Conversion:
Convert from Unicode to Punycode and back
Multi-script Support:
Supports all Unicode scripts including Arabic, Chinese, Cyrillic, Devanagari
Real-time Conversion:
Instant conversion as you type
Batch Processing:
Convert multiple domains at once
Copy to Clipboard:
Easy copying of converted results
Validation:
Checks for valid domain name format
Free and Unlimited:
No registration required, unlimited conversions

Examples of IDN Conversion

Arabic Domain
العربية.com → xn--mgbah1a3hjkrd.com
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Chinese Domain
中国.com → xn--fiqs8s.com
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Russian Domain
россия.рф → xn--h1alffa9f.xn--p1ai
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Hindi Domain
भारत.com → xn--h2brj9c.com
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German Domain
müller.com → xn--mller-kva.com
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When to Use IDN Converter

Domain Registration:
Convert Unicode domains to Punycode for registration
Website Development:
Ensure proper handling of international domains
Email Configuration:
Set up email systems with internationalized domains
SEO Optimization:
Optimize websites for local language domains
Brand Protection:
Register domains in multiple scripts and languages
Accessibility:
Make websites accessible to non-English speakers
Technical Troubleshooting:
Debug issues with international domains

Supported Scripts and Languages

Arabic: العربية (Arabic script)
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Chinese: 中文 (Simplified and Traditional Chinese)
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Cyrillic: Русский (Russian, Ukrainian, Bulgarian, etc.)
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Devanagari: हिन्दी (Hindi, Marathi, Nepali)
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Greek: Ελληνικά (Greek script)
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Hebrew: עברית (Hebrew script)
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Japanese: 日本語 (Hiragana, Katakana, Kanji)
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Korean: 한국어 (Hangul script)
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Thai: ไทย (Thai script)
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Latin Extended: Accented characters (ñ, ü, ç, etc.)
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Technical Information

Punycode Format
Punycode domains always start with "xn--" prefix followed by the encoded string. The encoding uses a specific algorithm defined in RFC 3492 to represent Unicode characters using only ASCII characters (a-z, 0-9, and hyphens).
Browser Support
Modern web browsers automatically handle IDN domains by converting them to Punycode internally. However, some older systems or applications may require manual conversion.
DNS Compatibility
The Domain Name System (DNS) only supports ASCII characters, so all IDN domains are stored and transmitted as Punycode in DNS records. The conversion is typically handled automatically by domain registrars and DNS software.

How to Use the IDN Converter

Enter your domain name in the input field above
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Select the conversion type:
** Text to Punycode: Convert Unicode domain to ASCII Punycode
** Punycode to Text: Convert Punycode back to Unicode domain
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Click the "Convert" button to perform the conversion
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Copy the converted result for use in your applications
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Use "Reset" to clear the form for a new conversion
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Frequently Asked Questions

What's the difference between IDN and Punycode ?
IDN (Internationalized Domain Names) is the concept of using non-ASCII characters in domain names, while Punycode is the specific encoding method used to represent these Unicode characters in ASCII format for DNS compatibility.
Do all browsers support IDN domains ?
Most modern browsers support IDN domains automatically. However, some may display the Punycode version in the address bar for security reasons, especially if the domain contains mixed scripts.
Can I register an IDN domain ?
Yes, many domain registrars support IDN domain registration. However, availability depends on the specific top-level domain (TLD) and the registrar's capabilities.
Are IDN domains more expensive ?
IDN domain pricing varies by registrar and TLD. Some registrars charge the same price as ASCII domains, while others may have different pricing structures.
How do I type IDN domains in emails ?
You can usually type IDN domains directly in email addresses. Most modern email clients handle the conversion automatically, but some may require the Punycode version.