GrandPerspective is not available for Windows but there are some alternatives that runs on Windows with similar functionality. The best open source Windows alternative is WinDirStat. If that doesn't suit you, our users have ranked more than 50 alternatives to GrandPerspective and eight of them are open source and available for Windows so hopefully you can find a suitable replacement. Other interesting open source Windows alternatives to GrandPerspective are SquirrelDisk, Filelight, Space Radar and dua-cli.
Comprehensive disk analysis tool offering treemap visualizations to identify large files, duplicate detection, and versatile cleanup actions. Operates offline, ad-free, and open-source, it runs portably on Windows without registration, providing a lightweight solution to manage disk storage.
SquirrelDisk shows you exactly what's taking up all that space and helps you clear it out. Using SquirrelDisk is a matter of clicking one button to easily find all the huge files on your computer.
Provides graphical disk usage analysis using interactive segmented rings, scans local, remote and removable disks, enables navigation and file management from within the interface, displays live info on hover, and integrates with KDE file managers for efficient data management.
Free open-source cross-platform file & directory statistics as found on Github
TreePie : a simple way to display disk usage. It shows the distribution of size in a tree of directories by using an interactive multilevel pie (sunburst diagram). Really small and simple.
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