WinDirStat
WinDirStat is a free program for Windows that shows which files and folders take up the most space on your drives, so you can find and remove what you no longer need. It is aimed at everyday Windows users who want to see what is filling their disk.
How hard it is to start using it. Easy: install it like a normal app, or use it in your browser. Advanced: you run it on your own server, use the command line, or it is a tool for developers.
Features
Shows what fills your disk
SourceYes
Finds duplicate filesFinds exact copies; similar-but-not-identical matches are labeled probable only
SourcePartly
Clears junk and cachesRuns Windows cleanup tools and custom commands, not ready-made junk cleaning
SourcePartly
Windows, Mac and Linux appWindows only
SourceNo
Listed in
Finds large, duplicate and old files and runs cleanup tools; it does not clear junk files on its own.
How to help
AI contributionsNot stated
The project has not said how it feels about AI-written contributions. Maintainers can set this by claiming the listing.