WinDirStat: Disk usage statistics viewer for Microsoft Windows clients, servers

I used WinDirStat for years, but WizTree is _much_ better. It reads directly from the file system metadata tables instead of having to scan the whole filesystem, so the file tree loads much faster. No need to wait for all those pacmen munching their way through the whole disk :)

For Mac

https://grandperspective.macupdate.com/ (free)

https://daisydiskapp.com/ (paid)

I've been using this utility for years. It's totally helpful and useful, and as a bonus, has an excellent and intuitive display of what's really taking up room on your storage devices.

No, I have no connection with the author of this app.

Using this since 15 years. A valuable tool that works.

Though: It should not only show me that this Sys32-folder is growing constanstly, I wish it would also allow me to clean up this folder riskfree :-))