# Open-source alternatives to WizTree commercial licence

> We track 2 open-source alternatives to WizTree commercial licence, but none currently has confirmed commercial use, local running and no paid services together. WinDirStat covers all 4 WizTree commercial licence jobs.

WizTree commercial licence: Antibody Software's disk space analyser for Windows (with a separate macOS version). It reads the NTFS Master File Table directly, so full-drive scans take seconds, then shows a treemap, the largest files, duplicates and CSV export. It is free for personal use; companies need a perpetual supporter licence priced by staff count. Pricing: Free for personal use; commercial use needs a supporter licence from 25 USD (individual) to 1,800 USD (enterprise, multi-site) (checked 2026-10-21). Facts checked 2026-10-21.

## Projects

| Project | Use it instead? | Jobs | Runs locally | Commercial use | Paid services | Hardware |
|---|---|---|---|---|---|---|
| [Czkawka and Krokiet](https://repoquarry.dev/projects/czkawka) | Personal use: Yes. Business: Partly (Commercial use with conditions: Free to use at work; GPL conditions apply if you distribute a modified Krokiet app). | duplicate-file-finder, largest-file-finder, junk-file-cleanup | Yes, desktop and command-line app with no internet access | Free to use at work; GPL conditions apply if you distribute a modified Krokiet app | None; free with no ads | Not documented; similar-video search needs ffmpeg |
| [WinDirStat](https://repoquarry.dev/projects/windirstat) | Personal use: Yes. Business: Partly (Commercial use with conditions: Free to use at work; GPL conditions apply if you distribute modified versions). | disk-usage-analysis, largest-file-finder, duplicate-file-finder, disk-usage-reports | Yes, Windows desktop app; scans local drives, folders, network shares and MTP devices | Free to use at work; GPL conditions apply if you distribute modified versions | None; no account or paid edition | Not documented |

## Common questions

### Is there a free, open-source alternative to WizTree commercial licence?

Yes. WinDirStat and Czkawka and Krokiet are free to download and run on your own computer without paid API keys. WinDirStat covers every job we list for WizTree commercial licence; the other covers only part of it, so check which job you need.

### Can I do see what uses disk space locally without a WizTree commercial licence subscription?

Yes, with WinDirStat (GPL-3.0-or-later). Check the hardware notes and licence conditions on each page before you start.

### Can I do find the largest files locally without a WizTree commercial licence subscription?

Yes, with WinDirStat (GPL-3.0-or-later) and Czkawka and Krokiet (MIT AND GPL-3.0-only). Check the hardware notes and licence conditions on each page before you start.

### Which WizTree commercial licence alternatives can I use commercially?

With conditions: Czkawka and Krokiet and WinDirStat. This is not legal advice; read each licence.

### Does any open-source project replace all of WizTree commercial licence?

WinDirStat covers every job we list for WizTree commercial licence.

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Source: RepoQuarry (https://repoquarry.dev/alternatives/wiztree). Data licence: CC BY 4.0. Quotes are from project documentation and belong to their authors.