The other day I noticed one of my hard drives was getting full and needed to figure out what was taking up all that space. Normally I’d used WinDirStat, but the WinDirStat website (and the project itself?) appears unavailable.
Looking for alternatives led me to SpaceSniffer, which is essentially a WinDirStat clone.
SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks. By using a Treemap visualization layout, you have immediate perception of where big folders and files are placed on your devices. Treemap concept was invented by Prof. Ben Shneiderman, who kindly permitted the use of his concept into this tool.