dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.
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.
Duplicate Cleaner - Duplicate Cleaner: the fastest and most popular tool for finding duplicate files. Over 1 million downloads: Get your copy now! Free and Pro versions available.
DiskSavvy - DiskSavvy is a free, fast and easy-to-use disk space analyzer utility allowing one to analyze disk...
Czkawka - Multi functional app to find duplicates, empty folders, similar images etc.
DiskWave - DiskWave is a free utility to help you determine where most of your hard drive space is consumed.