WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
Organize - The file management automation software.
WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.
NoodleSoft Hazel - NoodleSoft Hazel is an all-in-one software that acts as a task manager specially designed for the Mac OS, making you minimize clutters and saves time by automatically moving, sorting, remaining, or performing other classical actions on the folders t…
SpaceSniffer - SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.
WatchDirectory - WatchDirectory monitors a file system directory and performs tasks when certain conditions are met.