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SquirrelDisk vs WinDirStat: catalog facts
SquirrelDisk	WinDirStat
Free Free and open source.	Free Free and open source under the GPL 2.0.
Windows, macOS, Linux, Command line	Windows
Sunburst and treemap views Scans remote servers over SSH and cloud storage	Treemap makes one enormous file obvious at a glance Finds duplicates by hash and compares logical against physical size
Visual charts can be less precise than a plain sorted list	Windows only The treemap is dense and takes a moment to learn to read
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.