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WizTree vs WinDirStat: catalog facts
WizTree	WinDirStat
Freemium Free for personal use. Commercial use, or removing the Donate button, requires a paid…	Free Free and open source under the GPL 2.0.
Windows	Windows
Reads the NTFS master file table, so scans finish in seconds rather than minutes Treemap view of the whole drive alongside a sorted file and folder list	Treemap makes one enormous file obvious at a glance Finds duplicates by hash and compares logical against physical size
Closed source The MFT trick only applies to NTFS; other file systems fall back to a normal scan	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
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 21, 2026

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