| HTML Entity (dec) | 😀 |
| HTML Entity (hex) | 😀 |
| UTF-8 (hex) | 0xf09f9880 / 0xf0 0x9f 0x98 0x80 (4 bytes) |
| UTF-8 (dec) | 240, 159, 152, 128 (4 bytes) |
| UTF-16-BE (hex) | 0xd83dde00 / 0xd8 0x3d 0xde 0x00 (4 bytes) |
| UTF-16-BE (dec) | 216, 61, 222, 0 (4 bytes) |
| UTF-32-BE (hex) | 0x1f600 / 0x00 0x01 0xf6 0x00 (4 bytes) |
| UTF-32-BE (dec) | 0, 1, 246, 0 (4 bytes) |
| C/C++/Java source code | "\u1f600" |
| Python source code | "\u1f600" |