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SquirrelDisk vs Prunr: catalog facts
SquirrelDisk	Prunr
Free Free and open source.	Free Free and open source under the MIT licence.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Sunburst and treemap views Scans remote servers over SSH and cloud storage	Duplicate finder and disk usage analyser in one app Previews and auto-selection for safer cleanup
Visual charts can be less precise than a plain sorted list	Young project with a small user base No documented command-line mode
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
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 October 1, 2026

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