Uniware Card Number Converter

Enter the ROM code (14 hex characters). This page drops the last 6 characters, reverses byte order of the remaining 8 hex characters, then converts to decimal.


Accepts 14 chars (full) or 8 chars (already shortened). Hex only: 0–9, A–F.
How the conversion works
  1. Normalize input (trim spaces, uppercase).
  2. If length is 14: drop the last 6 characters (keep the first 8).
  3. Split into 2-char bytes.
  4. Reverse the byte order and join.
  5. Convert hex → decimal.

Example: CADEB159000000 → CADEB159 → 59B1DECA → 1504829130