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SquirrelDisk vs OpenDisk: catalog facts
SquirrelDisk	OpenDisk
Free Free and open source.	Free Free and open source under the MIT licence.
Windows, macOS, Linux, Command line	macOS
Sunburst and treemap views Scans remote servers over SSH and cloud storage	Interactive sunburst view with one-click cleanup Incremental repeat scans
Visual charts can be less precise than a plain sorted list	macOS only Requires macOS 15 Sequoia or later
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 2, 2026

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