Bviplus is a console ncurses based binary file editor (hex editor) with Vim-like keys and features. It can quickly open/edit/save very large files (> 2GiB). It can perform regexp-like pattern searches in hex or ASCII windows. It features search highlighting, multiple undo/redo, a tabbed multiple file interface, visual selection, cut and paste (which works between files as well), blob coloring, and more. It can run external programs on selected data, supporting any program that reads stdin and writes stdout. It has few dependencies for easy portability.
bed is an adjustable data format binary editor. Data formats are ASCII, unsigned and signed integers, float, bit-flags, bit-fields, labels, EBCDIC, and time_t. Different sizes and byte orderings are possible. Data types can be used in structures. Other data formats, filters, and procedures can be defined in plugins. It features copy, paste, undo, redo, search, replace, marks, record/play, and context sensitive help. bed can be used to edit raw hard drives. Under Linux and FreeBSD it is even usable without the X Window System.