| HTML Entity (dec) | ff |
| HTML Entity (hex) | ff |
| UTF-8 (hex) | 0xefac80 / 0xef 0xac 0x80 (3 bytes) |
| UTF-8 (dec) | 239, 172, 128 (3 bytes) |
| UTF-16-BE (hex) | 0xfb00 / 0xfb 0x00 (2 bytes) |
| UTF-16-BE (dec) | 251, 0 (2 bytes) |
| UTF-32-BE (hex) | 0xfb00 / 0x00 0x00 0xfb 0x00 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 251, 0 (4 bytes) |
| C/C++/Java source code | "\ufb00" |
| Python source code | "\ufb00" |