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

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