FFmpeg

A complete, cross-platform solution to record, convert and stream audio and video. FFmpeg is a free and open-source project consisting of a vast software suite of libraries and programs for handli...
Language(s): C and Assembly
Operating system(s): Windows, Mac OS, Linux
License: Open source software (Lesser GNU Public License) Portions are under “Dr.DivX DLL EULA” (Freeware)

FreeMat

FreeMat is a free environment for rapid engineering and scientific prototyping and data processing. It is similar to commercial systems such as MATLAB from Mathworks, and IDL from Research Systems, bu...
Language(s): Assembly language, C, C++, Fortran, Qt
Operating system(s): Linux, Mac OS, Windows
License: GNU General Public License

OpenSSL

OpenSSL is a software library for applications that secure communications over computer networks against eavesdropping or need to identify the party at the other end. It is widely used by Internet ser...
Language(s): C, Assembly, Perl
Operating system(s): Unix, Linux, macOS, and BSD, Window
License: Apache License 2.0

VirtualBox

VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise cust...
Language(s): C, C++, x86 Assembly
Operating system(s): Windows, Mac OS, Linux, Solaris
License: Base Package: GNU GPLv2, Extension Pack: PUEL