Duc is a collection of tools for inspecting and visualizing disk usage.
Duc scales quite well, it has been tested on systems with more than 500 million files and several petabytes of storage.



O&O DiskStat is described as 'High-power tool for analyzing the used disk space on your storage volumes. With an easy-to-use interface based on the design of the Windows Explorer, you can take a closer look at the file and folder structure of your internal and external drives' and is a disk usage analyzer in the system & hardware category. There are more than 50 alternatives to O&O DiskStat for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best O&O DiskStat alternative is WinDirStat, which is both free and Open Source. Other great apps like O&O DiskStat are WizTree, Baobab Disk Usage Analyzer, DiskUsage and GrandPerspective.
Duc is a collection of tools for inspecting and visualizing disk usage.
Duc scales quite well, it has been tested on systems with more than 500 million files and several petabytes of storage.



Inspect your disk and find the files that occupy the most space or that haven’t been modified in a long time.




GdMap is a tool which allows to visualize disk space. Ever wondered why your hard disk is full or what directory and files take up most of the space? With GdMap these questions can be answered quickly. To display directory structures cushion treemaps are used which visualize a...






K4DirStat, fork of KDirStat , is a small utility program that sums up disk usage for directory trees, very much like the Unix 'du' command. It displays the disk space used up by a directory tree, both numerically and graphically.
Create a visual representation of the amount of space each file is taking on your hard drive. It creates a "squarified treemap" that makes it easy to see where all your space is going.

This free-for-personal-use software utility analyses storage disk usage, and then presents the gathered information in graphical format(s) viz. a directory tree, or a pie chart.





DiskWave is a free utility to help you determine where most of your hard drive space is consumed.

i.Disk scans directory trees and displays the total space used by each directory in an easy to use form.

DiskSavvy is a free, fast and easy-to-use disk space analyzer utility allowing one to analyze disk usage in one or more disks, directories, network shares and/or NAS storage devices.



