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QDirStat vs FolderSizes: catalog facts
QDirStat	FolderSizes
Free Free and open source under the GPL version 2.	Freemium Free version available, with a paid Pro upgrade.
macOS, Linux	Windows
Treemap plus tree view of disk usage No KDE dependencies	Analyses network shares as well as local drives Scheduled reports with email delivery
No Windows version Interface is dense for casual users	Windows only Some features require the paid Pro edition
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	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 23, 2026	Official website Full listing and sources Checked September 24, 2026

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