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ncdu vs QDirStat: catalog facts
ncdu	QDirStat
Free Free and open source under an MIT-style licence.	Free Free and open source under the GPL version 2.
macOS, Linux, Command line	macOS, Linux
Works over SSH on a server with no graphical environment Parallel scanning with -t8 is much faster on large trees	Treemap plus tree view of disk usage No KDE dependencies
No Windows build Colours are off by default because they were not legible in all terminals	No Windows version Interface is dense for casual users
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-2.0
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

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