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K4DirStat vs Disk Usage Analyzer: catalog facts
K4DirStat	Disk Usage Analyzer
Free Free to use, with source code published on GitHub.	Free Free GNOME application; donations go to the GNOME Foundation.
Linux	Linux
Shows directory sizes both as a list and as a treemap Works like a graphical version of du	Tree and chart views of folder sizes Scans folders, whole devices and online accounts
Built on Qt 5 and KDE Frameworks 5, so it fits a KDE desktop best Documentation lives in a GitHub wiki rather than a dedicated site	Linux only Shows usage but has few cleanup features of its own
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
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 23, 2026

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