Punycode Converter
Convert internationalized domain names to Punycode
Convert internationalized domain names to Punycode. Key features include IDN to Punycode encoding and Punycode to IDN decoding. Use it for encoding, decoding, and format conversion. All processing runs locally in your browser. Your files and text are not sent to Tool-web's server.
Encrypted with HTTPSProcessed in your browser
All processing runs locally in your browser. Your files and text are not sent to Tool-web's server.
Actions:
How to Use
- Enter the internationalized domain name
- The Punycode version appears instantly
- Or enter Punycode to decode
- Copy the result
Features
- IDN to Punycode encoding
- Punycode to IDN decoding
- UTF-8 domain support
- Instant conversion
- Copy to clipboard
Frequently Asked Questions
What is Punycode?
Punycode is an encoding used to represent Unicode domain names in ASCII, prefixed with xn--.
Why is Punycode needed?
DNS systems only support ASCII characters. Punycode encodes international characters for DNS compatibility.
Can I use Punycode domains in browsers?
Yes. Modern browsers automatically convert between Punycode and internationalized display.
What encoding tools are available?
We offer Base64 encoder/decoder, URL encoder/decoder, hash generator (MD5, SHA), XOR encoder, ROT13, Caesar cipher, and more.
Are these encoding tools free?
Yes. Every encoding tool is free and requires no account, installation, or usage limits.
Is my data secure during encoding?
All encoding and decoding happens in your browser. No data is ever sent to external servers, making it safe for sensitive information.
Do the tools support Unicode?
Yes. All tools handle UTF-8 encoded text including non-ASCII characters, emoji, and international text correctly.
Privacy & Security
All processing happens entirely in your browser using client-side JavaScript. Your files and text are not uploaded to Tool-web's server.
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