EF BB BF
UTF-8 byte order mark
The UTF-8 encoding of the byte order mark U+FEFF. Frequently the invisible culprit when a parser chokes on the first character of a text file.
Similar magic numbers
| value | name | category |
|---|---|---|
| EF BB BF 3C | Windows Script Component (UTF-8) | file-signature |
| EF BB BF 3C 3F | Windows Script Component (UTF-8) | file-signature |
| EF BB BF 3C 3F 78 6D 6C 20 76 65 72 73 69 6F 6E | YouTube Timed Text (subtitle) file | file-signature |
| DC FE | eFax file | file-signature |
| EB | Windows executable file | file-signature |