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Comparison
The cross-platform WizTree alternative
WizTree is extremely fast on Windows because it reads the NTFS file table (MFT) directly. If you also want the same app on macOS and Linux — with treemap and sunburst, free and without tracking — FreeSize is the alternative for you.
FreeSize compared with WizTree
| Feature | FreeSize | WizTree |
|---|---|---|
| Platforms | Windows, macOS, Linux | Windows only |
| Visualization | Treemap, sunburst & heatmap | Treemap & lists |
| Scan speed | Live-growing tree, largest first | Very fast on NTFS (MFT read) |
| Price | Free (optional Pro) | Free for home · paid for commercial |
| Privacy | Local, no tracking, signed & notarized | Local (Windows) |
| Interface | Modern, light & dark mode | Windows tables |
| Origin | Switzerland | Antibody Software |
Why FreeSize?
- The same app on Windows, macOS and Linux — identical to use.
- Treemap and sunburst: two views of the same storage.
- The tree grows live during the scan — largest first, no waiting for the end.
- Local analysis without tracking; code-signed (DigiCert EV) and notarized on macOS.
What speaks for WizTree
WizTree is unbeatably fast on NTFS drives because it reads the Master File Table directly. If you work exclusively on Windows with NTFS and need maximum scan speed, WizTree is hard to beat.
Try FreeSize for free
No sign-up required — version 0.3.1 for Windows, macOS and Linux.
Download for free