heh

heh [options] file

heh is a cross-platform terminal hex editor used for modifying file data at the byte level. It aims to replicate the visual style of hexyl while functionally acting as a terminal UI version of GHex. The editor supports viewing and editing in both hexadecimal and ASCII modes, with editing granularity down to the nibble (half-byte).
The interface displays offset addresses, hex values, and ASCII representation side by side, with color-coded byte categories for easy identification of different data types.

h/j/k/l — Move cursor left/down/up/right
i — Enter insert mode
Esc — Return to normal mode
/ — Search
:w — Save
:q — Quit
:wq — Save and quit

Large files may consume significant memory as the entire file is loaded. The editor uses vim-like key bindings which may require familiarity with modal editing.

heh was created by ndd7xv and is written in Rust. It was designed to provide a lightweight, terminal-native hex editing experience with a familiar visual layout.

hexyl(1), xxd(1), hexdump(1)