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QDirStat vs OmniDiskSweeper: catalog facts
QDirStat	OmniDiskSweeper
Free Free and open source under the GPL version 2.	Free Free download from The Omni Group.
macOS, Linux	macOS
Treemap plus tree view of disk usage No KDE dependencies	Plain list of files sorted by size Trash or open files directly from the list
No Windows version Interface is dense for casual users	macOS only List view only, no treemap or chart
Downloadable app	Downloadable app
Open source	Closed 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 23, 2026	Official website Full listing and sources Checked September 23, 2026

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