Custom command-line commands can be set up to do anything supported by the Windows command-line, like delete all the TMP files in a folder you've selected, send all of a folder's file names to a text file, etc.

The brightness, height, style, and other options for the colored, boxed treemap can be customized.

You can change the colors for the directory listing from within WinDirStat's settings, as well as display the total time it took for a scan to finish.

The Cleanup menu provides a way to open files and folders from within WinDirStat, as well as open the folder that a file is stored in, launch Command Prompt at a certain location, delete files/folders, and view the properties of an item.

You can quickly copy the path to any file or folder.

The extension list also serves as a key to understanding the treemap, which is a visual representation of all the files on the drive and their respective proportional size to every other file (the files represented as larger blocks take up more disk space than the files shown as smaller blocks).

It includes a description of the file type, what percentage of the total available space that the format is using, and how many files of that type are on the drive/folder

There's also a sortable file extension list that shows which file formats (like MP4, EXE, RAR, etc.) are taking up the most space.

One available view is given so that you can browse through folders and files as you would in File/Windows Explorer, except that WinDirStat sorts the folders not by name or date but by the total size.

You can scan one, multiple, or all internal hard drives, flash drives, and external hard drives at once, or just one single folder.

The makers of this program recommend QDirStat (Linux) and Disk Inventory X (Mac), which look like this program but go by different names, so they aren't really the same.

It should run fine on Windows 11, Windows 10, Windows 8, and older versions of Windows, through Windows 95.

Treeview disk space