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WinDirStatTreeSize Free
Free

Free and open source under the GPL 2.0.

 Freemium

TreeSize Free is free for private and commercial use. TreeSize Personal, Professional and…

Windows Windows
  • Treemap makes one enormous file obvious at a glance
  • Finds duplicates by hash and compares logical against physical size
  • Reads the NTFS master file table, so scans finish quickly
  • Folder tree sorted by size, updating while it scans
  • Windows only
  • The treemap is dense and takes a moment to learn to read
  • Windows only and closed source
  • Duplicate search, reports and exports need a paid edition
Downloadable app Downloadable app
Open source Closed source
License: GPL-2.0 License not stated
No account needed No account needed
Works offline Works offline

Checked September 21, 2026

Checked September 21, 2026

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