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Comparison
The modern WinDirStat alternative
WinDirStat is a proven, free classic for seeing what fills your drive on Windows. If you want a more modern interface, a second visualization, or the same app on macOS and Linux too, FreeSize is the alternative for you.
FreeSize compared with WinDirStat
| Feature | FreeSize | WinDirStat |
|---|---|---|
| Platforms | Windows, macOS, Linux | Windows only |
| Visualization | Treemap, sunburst & heatmap | Treemap & lists |
| Scan view | Tree grows live, largest first | Result after the scan |
| Interface | Modern, light & dark mode | Classic |
| Privacy | Local, no tracking, signed & notarized | Local, open source |
| Price | Free (optional Pro) | Free (open source) |
| Origin | Switzerland | Community project |
Why FreeSize?
- The same app on Windows, macOS and Linux — identical to use.
- Treemap and sunburst: two views of the same storage, one click zooms in.
- The tree grows live during the scan — the biggest space hogs first.
- Local analysis without tracking; code-signed (DigiCert EV) and notarized on macOS.
What speaks for WinDirStat
WinDirStat is open source, lightweight and battle-tested for years — a solid choice if you work exclusively on Windows and prefer an established open-source tool.
Try FreeSize for free
No sign-up required — version 0.3.1 for Windows, macOS and Linux.
Download for free