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Neodisk vs OmniDiskSweeper: catalog facts
Neodisk	OmniDiskSweeper
Free Free and open source.	Free Free download from The Omni Group.
macOS	macOS
Treemap, flat and sunburst views of disk usage Read-only, so it cannot delete files	Plain list of files sorted by size Trash or open files directly from the list
macOS only Cleanup has to be done elsewhere since it never deletes	macOS only List view only, no treemap or chart
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
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.