# Windirstat (open-source data recovery and backup tool)

> Windirstat is a free, open-source data recovery and backup tool for Windows. Windows disk usage analyzer and cleanup tool with interactive treemaps, large-file discovery, duplicate detection, and file-system monitoring. It has 4,241 GitHub stars and is released under the GPL-3.0 license, and people use it instead of TreeSize and WizTree.

WinDirStat is a disk usage analyzer and cleanup assistant for Microsoft Windows. Scan drives, folders, network shares, or connected MTP devices, then explore disk usage through sortable file lists, file-type statistics, and interactive treemaps, sunbursts, or flame graphs.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/windirstat/windirstat |
| Platforms | Windows |
| Interface | desktop GUI |
| GitHub stars | 4,241 |
| License | GPL-3.0 (open source) |
| Replaces | TreeSize, WizTree |
| Language | C++ |
| Website | https://windirstat.net |
| Official | no |
| Category | Data recovery & backup |
| Latest release | release/v2.9.2 (Oct 6, 2026) |
| Last commit | Oct 6, 2026 |

## Install

### winget (Windows)

```sh
winget install WinDirStat.WinDirStat
```

Package page: https://winstall.app/apps/WinDirStat.WinDirStat

### Chocolatey (Windows)

```sh
choco install windirstat
```

Package page: https://community.chocolatey.org/packages/windirstat

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