darktable

darktable is an open source photography workflow application and raw developer. A virtual lighttable and darkroom for photographers. It manages your digital negatives in a database, lets you view them...
Language(s): C, GTK+
Operating system(s): FreeBSD, Linux, Mac OS, Solaris, Windows
License: GNU General Public License 3 or later.

digiKam

digiKam is an advanced open-source digital photo management application that runs on Linux, Windows, and MacOS. The application provides a comprehensive set of tools for importing, managing, editing, ...
Language(s): C++, QT
Operating system(s): Linux, Windows, Mac OS
License: GNU General Public License