showFoto - ShowFoto is the standalone image editor of the digiKam project.
Teachable - Create and sell beautiful online courses with the platform used by the best online entrepreneurs to sell $100m+ to over 4 million students worldwide.
PixBuilder - Free Photo Editing Software for PC
Clever - syncing between education applications for K-12 schools
PhotoDemon - Lightweight portable BSD licensed photo editor for Windows focused on performance and usability.
Claroline - Claroline is a collaborative eLearning and eWorking platform.