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

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