hexabyte

hexabyte [--split|--diff] [options] file [file2]

hexabyte is a modern, modular, and robust TUI hex editor designed for modifying file contents at the byte level. It supports viewing and editing in hexadecimal and ASCII with multiple display modes: single file editing, split view for side-by-side file comparison, and diff mode for highlighting differences between two files.
The editor features a plugin architecture for extensibility and provides standard hex editing operations including inserting, deleting, and replacing bytes, as well as selecting and copy/pasting byte ranges.

Requires Python 3.10+. Very large files may impact performance. The diff mode highlights byte-level differences, which may produce noisy output for structurally different files.

hexabyte was created by thetacom and is written in Python. It was designed to provide a modern, extensible alternative to traditional terminal hex editors.

hexyl(1), xxd(1), heh(1)