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Neodisk vs QDirStat: catalog facts
Neodisk	QDirStat
Free Free and open source.	Free Free and open source under the GPL version 2.
macOS	macOS, Linux
Treemap, flat and sunburst views of disk usage Read-only, so it cannot delete files	Treemap plus tree view of disk usage No KDE dependencies
macOS only Cleanup has to be done elsewhere since it never deletes	No Windows version Interface is dense for casual users
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 1, 2026	Official website Full listing and sources Checked September 23, 2026

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