Free Punycode / IDN Converter
Convert Unicode domains to xn-- punycode and back · and check whether a domain mixes scripts the way phishing lookalikes do.
Frequently asked
What is a homograph attack?
Registering a domain with characters that render like another's · Cyrillic а in "pаypal.com" is a different letter than Latin a. In punycode the fake shows as xn--pypal-4ve.com · which is why converting suspicious domains is a quick phishing check.
What does xn-- mean in a domain?
It marks a punycode-encoded label: Unicode squeezed into the ASCII that DNS requires. Legitimate international domains use it (münchen.de → xn--mnchen-3ya.de) · it's the mixed-script lookalikes that are suspect.
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