FolderInfo 

Disk usage analyzer. FolderInfo can be used as a tool for listing directories and contents and has some other useful functions.
utility disk quota cleaner file space list of files wasted attribute folder size temporary temp tmp

DU 

These 2 applications enable you to answer the question: "where has all my disk space gone?", and once answered, the disk space can be quickly and easily reclaimed. DiskUsage & DiskClean are distributed together as one utility package.
disk housekeeping disk usage du command disk clean disk usage report disk usage analyser lost disk space automatic space recovery remove temporary files