hexedit shows a target both in hexadecimal and in ASCII. This target can be a device or a file. You can edit the target and search through it. There are also copy&paste and save to file functions. Is allowed truncating or appending to the target. All modifications are shown in bold.

Meson is a build system designed to increase programmer productivity. It does this by providing a fast, simple and easy to use interface for modern software development tools and practices.

GNU MP is a programmer's library for arbitrary precision arithmetic (ie, a bignum package). It can operate on signed integer, rational, and floating point numeric types.

Image::ExifTool is a customizable set of Perl modules plus a full-featured command-line application called exiftool for reading and writing meta information in a wide variety of files, including the maker note information of many digital cameras by various manufacturers such as Canon, Casio, DJI, FLIR, FujiFilm, GE, HP, JVC/Victor, Kodak, Leaf, Minolta/Konica-Minolta, Nikon, Nintendo, Olympus/Epson, Panasonic/Leica, Pentax/Asahi, Phase One, Reconyx, Ricoh, Samsung, Sanyo, Sigma/Foveon and Sony.

This package provides a number of small utilities which are used primarily by the installation scripts of Debian packages, although you may use them directly.