Explorer style software that shows the actual space used by a folder. Shows graphical charts of file statistics [Windows 9x/ME/NT/2000]

Disk space analysis and cleaning software for Windows 98/ME/XP.

A hard drive free space analysis tool for Mac OS X

ShowSize lets you see folder sizes, unused files, and also lets you print folder contents. [Windows 98/Me/2000/XP]

Cross platform tool that helps graphically find and remove folders that take up excessive space. Uses rectangular boxes to represent folders based on their relative size.

Displays disk usage as rendered 3D bar, doughnut, and treemap charts, optionally grouped by file type or owner. [Windows 2000, XP, 2003, Vista]

Displays disk space utilization with detailed information. Supports easy management on individual files and folders. [Windows 95/98/NT4/2000]

A program to visually show the disk space distribution

Disk usage analysis tool for Windows. Shows graphically how disk space is being used. Works on local and network drives, and FTP accounts.

Program to graphically display information about distribution of size in a tree directory.