chexed

A simple terminal-based hex editor. It is written in C and uses the ncurses library.

Prerequisites

You need a Linux system and the ncurses library.

Install it on Debian/Ubuntu with this command:

sudo apt install libncurses-dev

Compilation

Use gcc to compile the source code. Run this command:

gcc chexed.c -o chexed -lncurses

Usage

Run the program with a file path:

./chexed your_file.bin

Controls

• Arrow Keys: navigate through the file.
• Page Up / Page Down: scroll quickly.
• 0-9, A-F: input hex values.
• + / -: increment or decrement the byte value by 1.
• Ctrl+S: save changes to the file.
• Ctrl+Q: quit the program.

Known Limitations

The program loads the entire file into RAM. Do not open files larger than your available memory.

The file size is fixed: you cannot insert or delete bytes.

Editing works in a specific way: typing a new digit shifts the current value 4 bits to the left.

License

MIT