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DiskBoss vs WinDirStat: catalog facts
DiskBoss	WinDirStat
Paid Commercial software sold through the developer's purchase page.	Free Free and open source under the GPL 2.0.
Windows, Command line	Windows
Combines disk space analysis, duplicate search and file classification in one tool Rule-based automation for organizing and migrating files	Treemap makes one enormous file obvious at a glance Finds duplicates by hash and compares logical against physical size
Windows only Wide feature set can be more than a simple disk usage viewer needs	Windows only The treemap is dense and takes a moment to learn to read
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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