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OmniDiskSweeper vs Neodisk: catalog facts
OmniDiskSweeper	Neodisk
Free Free download from The Omni Group.	Free Free and open source.
macOS	macOS
Plain list of files sorted by size Trash or open files directly from the list	Treemap, flat and sunburst views of disk usage Read-only, so it cannot delete files
macOS only List view only, no treemap or chart	macOS only Cleanup has to be done elsewhere since it never deletes
Downloadable app	Downloadable app
Closed source	Open source
License not stated	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 October 1, 2026

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