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FilelightWizTree
Free

Free and open source under the GPL.

 Freemium

Free for personal use. Commercial use, or removing the Donate button, requires a paid…

Windows, Linux Windows
  • The ring chart makes the biggest space consumers immediately obvious
  • Scans remote and network locations as well as local disks
  • 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
  • Pulls in KDE libraries on non-KDE desktops
  • Closed source
  • The MFT trick only applies to NTFS; other file systems fall back to a normal scan
Downloadable app Downloadable app
Open source Closed source
License: GPL-2.0 License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 20, 2026

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