GNU Octave

GNU Octave is a Scientific Programming Language with powerful mathematics-oriented syntax with built-in plotting and visualization tools, Free software, runs on GNU/Linux, macOS, BSD, and Windows, and...
Language(s): C, C++, Fortran
Operating system(s): GNU/Linux, Mac OS, BSD, Windows
License: GNU GPLv3

GNU Privacy Guard

GnuPG is a complete and free implementation of the OpenPGP standard as defined by RFC4880 (also known as PGP). GnuPG allows you to encrypt and sign your data and communications; it features a versatil...
Language(s): C
Operating system(s): Windows, Mac OS, RISC OS, Android, Linux
License: GPLv3

GROMACS

GROMACS is a versatile package to perform molecular dynamics, i.e. simulate the Newtonian equations of motion for systems with hundreds to millions of particles. It is primarily designed for bioche...
Language(s): C++, C
Operating system(s): GNU/Linux, Mac OS, Windows, Unix
License: LGPL versions >= 4.6, GPL versions < 4.6

Gateway Anti-Virus

Gateway Anti-Virus allows applications across the enterprise to check files for viruses by providing a SOAP-based virus scanning web service. Client applications attach files to SOAP messages and subm...
Language(s): N/A
Operating system(s): Linux, FreeBSD, NetBSD, OpenBSD, OpenSolaris, Mac OS X
License: GNU General Public License

Geeqie

Geeqie is a lightweight image viewer for Linux, BSDs and compatibles. It can be used as a simple, fast, database-free image viewer, but equally it can be used to manage large collections of images....
Language(s): C# (GTK#), C++
Operating system(s): Linux, BSD, Solaris
License: GNU General Public License