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DaisyDisk vs ncdu: catalog facts
DaisyDisk	ncdu
Paid A one-time purchase is required. The software is closed source.	Free Free and open source under an MIT-style licence.
macOS	macOS, Linux, Command line
Collect files into a holding area and delete them in one confirmed step Fast scans with a genuinely pleasant interface	Works over SSH on a server with no graphical environment Parallel scanning with -t8 is much faster on large trees
Paid application, macOS only	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
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 21, 2026

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