Hex editor
COMPUTER PROGRAM WHICH CAN REPRESENT AND EDIT DATA AT THE BYTE LEVEL
Binary file editor; Sector editor; Byte editor; Hexedit; Hex editing; HexEdit; Binary editor; Hexadecimal editor
A hex editor (or binary file editor or byte editor) is a computer program that allows for manipulation of the fundamental binary data that constitutes a computer file. The name 'hex' comes from 'hexadecimal', a standard numerical format for representing binary data.