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ncdu vs diskus: catalog facts
ncdu	diskus
Free Free and open source under an MIT-style licence.	Free The open-source application is available without a license fee.
macOS, Linux, Command line	Windows, macOS, Linux
Works over SSH on a server with no graphical environment Parallel scanning with -t8 is much faster on large trees	Simple directory totals with parallel scanning
No Windows build Colours are off by default because they were not legible in all terminals	It is a size counter rather than a full disk explorer.
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 22, 2026

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