A utility for finding and deleting big, useless files to free up space on your hard disks. [Mac OS X]

Cross platform graphical disk report utility to analyze hard disks and collect statistics that can be viewed using charts and tables. [Free: Windows/Solaris/Linux]

Filelight is an open software that shows your filesystem as a set of concentric pie-charts. [Unix]

Provides pie and bar charts of disk usage in a file manager interface. Includes a tool to conditionally search files and folders. [Windows 9x/2000/NT/ME/XP]

Hard disk space manager for Windows 95/98/NT. Shows folder or drive size, wasted space, 3D bar and pie charts, last access date, searches for old, big files. Explorer-like interface, Excel or text export, context menu support. English or German sharew...

Integrates with Windows Explorer to present visual indication of disk usage. Provides a visualizer pane for pie/bar charts, adds folder size columns in the details view, and size indicator bars in Explorer's tree view. [Windows 2000/XP/2003]

Shareware that creates visual representations of hard drive space utilization and folder sizes through multi-threaded analysis engine. [Windows 95/98/ME/NT 4.0/2000/XP and Internet Explorer]

Displays files and folders as boxes, with sizes relative to space taken on disk. [Windows 9x/NT/2000/ME/XP]

File management tool that includes folder sizes, file search, duplicate file finder and file monitor. [Windows 98/ME/2000/XP]

Hard disk space manager for Windows. Scans directory trees and stores the collected data in an SQL database. A user interface reports space usage, growth and more in tabular views, 3D bar, pie and line chars. Integrated file search.