SequoiaView - SequoiaView is a featured rich application that comes with the visualization technique to provide you a single view of files and documents that are stored in your hard drive.

dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.

DiskBoss - A file manager with a focus on storage side of things: Monitoring, classing, storage, duplicate...

AllDup - AllDup is a freeware tool for searching and removing file duplicates on your Windows computer.

RidNacs - RidNacs is a very fast disk space usage analyzer for Microsoft Windows.

Czkawka - Multi functional app to find duplicates, empty folders, similar images etc.