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WizTree vs FolderSizes: catalog facts
WizTree	FolderSizes
Freemium Free for personal use. Commercial use, or removing the Donate button, requires a paid…	Freemium Free version available, with a paid Pro upgrade.
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	Analyses network shares as well as local drives Scheduled reports with email delivery
Closed source The MFT trick only applies to NTFS; other file systems fall back to a normal scan	Windows only Some features require the paid Pro edition
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	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 20, 2026	Official website Full listing and sources Checked September 24, 2026

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