Punycode Converter – IDN to Punycode & Back
Free IDN Punycode converter. Convert international domain names with non-English characters to Punycode (xn--) and decode Punycode back to Unicode.
IDN Punnycode converter – Free Online Tool
Our free IDN Punycode Converter changes international domain names that use non-English letters into Punycode, and Punycode back into readable text.
What is IDN Punnycode converter?
Domain names were originally limited to English letters, numbers and hyphens. Internationalised Domain Names (IDNs) allow characters such as ü, é or 中文, and Punycode is the system that converts them into ASCII form starting with xn-- so DNS can understand them.
For example, münchen.de becomes xn--mnchen-3ya.de behind the scenes.
How to use the IDN Punnycode converter
- Enter an international domain or a Punycode domain.
- Choose the conversion direction.
- Click convert.
- Copy the result for DNS settings or verification.
Common use cases
- Setting up DNS for international domain names
- Checking suspicious look-alike domains in phishing emails
- Registering domains in local languages
- Configuring SSL certificates for IDNs
Frequently asked questions
Why do some links show xn-- addresses?
Browsers sometimes display Punycode to protect users from look-alike phishing domains.
Are IDNs good for SEO?
They can work for local audiences, but English-character domains are easier to type and share.
Is Punycode the same as URL encoding?
No. Punycode is only for domain names; URL encoding is for paths and parameters.
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