Viewing the raw bytes of a file is useful for many purposes. There’s several hex editors easily available:
xxd:- Typically installed with any Linux distro or copycats (Git Bash on Windows, for example)
- More of a hex “viewer” than “editor”… it’s not an interactive editor, but you can read & write data with it manually
dhex:- Ncurses-based hex editor.
hexcurse:- Another ncurses-based hex editor.
- Veles:
- Viewer only
- Provides 2D and 3D 2- and 3-gram data plots which form patterns unique to many types of data