• Interactive hex + ASCII editing in terminal
• Standard and Vim keymaps
• Two view styles: pretty and simple
• Theming support
• Open from file or from stdin ([command] | hexr)
• Undo/redo, search, selection, copy/cut/paste

cargo install hexr

This installs the latest published release from crates.io into your Cargo bin directory

git clone https://github.com/WhoSowSee/hexr.git hexr
cd hexr
cargo install --path .

The command above builds hexr and places the binary into the Cargo bin directory (usually ~/.cargo/bin)

git clone https://github.com/WhoSowSee/hexr.git hexr
cd hexr
cargo build --release

# Empty buffer
hexr

# Open file
hexr sample.bin

# Read from stdin
xxd -r -p dump.hex | hexr

-h, --help
-v, --version
-t, --theme <name>

-k, --keymap <standard|vim>

-w, --view <pretty|simple>

Available themes:

terminal, kanagawa, tokyonight, catppuccin, gruvbox, material-ocean, nord, monokai

Example:

hexr --theme nord --keymap vim --view pretty sample.bin

• Arrow keys: move cursor
• Esc: abort selection / reset soft input state
• Backspace: delete previous byte or selection
• Delete: delete current byte or selection
• :: enter command
• /: search
• n N: jump to next/previous match
• [ ]: increase/decrease number of columns
• Ctrl+G: show file name and current position
• Ctrl+L: redraw screen

• Tab: switch between hex and ascii input
• Ctrl+Q: quit
• Ctrl+W Ctrl+E: jump to start/end of screen/file
• Ctrl+K Ctrl+J: scroll up/down one page
• Ctrl+D: delete current byte or selection
• Ctrl+N: switch between replace and insert modes
• Ctrl+S: save (prompts filename for unnamed buffer)
• Ctrl+F: search
• Ctrl+Z Ctrl+Y: undo/redo
• Ctrl+C Ctrl+X Ctrl+V: copy/cut/paste
• Ctrl+P: paste and move cursor
• Ctrl+T: start/stop selection
• Ctrl+A: select all
• Ctrl+O: suspend editor (fg to continue on Unix)
• + -: increment/decrement current byte

• t: switch between hex and ascii input
• q: quit
• h j k l: move cursor
• i: switch between replace and insert modes
• u r: undo/redo
• v: start a selection
• x: delete current byte or selection
• s: substitute current byte or selection
• y: copy current byte or selection to clipboard
• p: paste
• P: paste and move cursor
• Ctrl+W Ctrl+E: scroll up/down one page
• g G: jump to start/end of screen or file
• ^ $: jump to start/end of current line
• Ctrl+Z: suspend editor (fg to continue on Unix)
• Ctrl+A Ctrl+D: increment/decrement current byte

• q - quit
• q! - force quit without save check
• w [filename] - save
• wq [filename] - save and quit
• x [filename] - save and quit
• colors y/n - toggle colors
• <offset> - jump to offset (hex, dec, oct formats supported)

• /x <hex-bytes> - search hex bytes
• /s <text> - search UTF-8 text
• /w <text> - search UCS-2 text

© 2026-present WhoSowSee