dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
AllDup - AllDup is a freeware tool for searching and removing file duplicates on your Windows computer.
Clever - syncing between education applications for K-12 schools
Czkawka - Multi functional app to find duplicates, empty folders, similar images etc.
Claroline - Claroline is a collaborative eLearning and eWorking platform.