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ncdu vs OmniDiskSweeper: catalog facts
ncdu	OmniDiskSweeper
Free Free and open source under an MIT-style licence.	Free Free download from The Omni Group.
macOS, Linux, Command line	macOS
Works over SSH on a server with no graphical environment Parallel scanning with -t8 is much faster on large trees	Plain list of files sorted by size Trash or open files directly from the list
No Windows build Colours are off by default because they were not legible in all terminals	macOS only List view only, no treemap or chart
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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