ModHex Calculator

The YubiKey uses a special data encoding format known as "modhex" rather than normal hex encoding or base64 encoding. Modhex is similar to hex encoding but with a different encoding alphabet. The reason is to achieve a keyboard layout independent encoding.

Developers may find it useful to convert values between different formats and for this reason we present a simple online service: the ModHex Calculator.

» Proceed to the ModHex Calculator.