Inkscape is available for Linux, Windows, Mac OS X (using X11 environment) and other Unix-based systems.

Using GTK+ 2 or 3, it works on Linux, Microsoft Windows and OSX.

Firebird is an open source SQL relational database management system that runs on Linux, Windows, and a variety of Unix.

But C code is not portable across operating system families, that is, for example, Linux, Mac, Windows, because the operating systems provide radically different sets of services.

Beowulf Unix, Linux, Windows.

No Time To Explain has been released on Linux, Windows and on Mac.

Due to its architecture, OpenKM can work on any operating system - Unix, Linux, Windows - though Linux is recommended by the developers.

It can be used in any navigator in Linux, Mac, Windows, and in mobile phones.

Packages are available for Linux, Unix, Windows, and Mac OSX systems.

GPS is cross-platform, running on Linux, Microsoft Windows and Solaris.