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Duc vs Disk Usage Analyzer: catalog facts
Duc	Disk Usage Analyzer
Free Free and open source.	Free Free GNOME application; donations go to the GNOME Foundation.
Linux, Command line	Linux
Scales to hundreds of millions of files Fast browsing from a stored index	Tree and chart views of folder sizes Scans folders, whole devices and online accounts
Results reflect the last index run, not live disk state Other systems need to build from source	Linux only Shows usage but has few cleanup features of its own
Downloadable app	Downloadable app
Open source	Open source
License: LGPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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