WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
DiskBoss - A file manager with a focus on storage side of things: Monitoring, classing, storage, duplicate...
Scanner - This tool uses a sunburst chart to display the usage of your hard disk or other media.
DiskWave - DiskWave is a free utility to help you determine where most of your hard drive space is consumed.
IntoDisk - IntoDisk is a tool that helps to analyse your disk space and explore it easily.
DiskSavvy - DiskSavvy is a free, fast and easy-to-use disk space analyzer utility allowing one to analyze disk...