Might use "Reverse Hex" or "Little Endian" formats depending on how the reader hardware processes the data. www.reddit.com Core Functionality
| HEX (original) | DEC (bytes) | Reverse HEX | Full Decimal UID | |----------------------|----------------------------|------------------|--------------------| | 04:AB:12:34:56:78:90 | 4-171-18-52-86-120-144 | 90:78:56:34:12:AB:04 | 1316923567807632 | | 08:6D:3F:2A | 8-109-63-42 | 2A:3F:6D:08 | 141249834 | | 54:45:53:54 | 84-69-83-84 | 54:53:45:54 | 1413824340 |
Here is solid, actionable content for an — useful for developers, testers, security researchers, or integrators working with NFC tags, cards, or readers (e.g., MIFARE, NTAG, ICODE).
If your NFC reader outputs a decimal string but your backend database stores hexadecimal, the system will fail to recognize the tag. Using a converter ensures:
