RoteBetaSoftware Folder Size
RoteBetaSoftware Folder Size is a simple tool that display the size of folders (and sub-folders) as bar charts. The chart display is interactive, and you can click on a bar to create an overview for the underlying folder structure, and also filter the display by file types. Does not require installation and is easy to use.
The license of this software is Freeware, you can free download and free use this file management software.