rsdirstat
rsdirstat: A focused, free analyzer for quickly finding large directories and files. Ranked #40 of 104 in Disk Space Analyzers by our editors (4.8/10); pricing: Free plan; best for fast cross-platform treemap scanning.
At a glance
- Editor score4.8 / 10
- PricingFree plan
- Best forFast cross-platform treemap scanning
- Free planYes
- Paid fromFree
- Desktop platformsmacos, linux, windows
- Facts checked23 Sep 2026
Where it wins
- Free and open source on macOS, Linux, and Windows
- Multithreaded scanning uses platform-native APIs
- Treemap navigation supports filters, coloring, and zooming
Where it doesn't
- Integration and export breadth is limited
- GUI and top-N reporting use separate interfaces
- Its scope centers on directory and file analysis
Our verdict on rsdirstat
rsdirstat is an open-source disk-usage analyzer for macOS, Linux, and Windows. It scans directories with platform-native APIs and presents the results in an interactive squarified treemap through a local web application. The product is suited to people who want a direct visual way to locate space-consuming files and folders across desktop operating systems, without a paid plan. A separate command-line binary produces top-N reports for directories or files.
Its standout feature is the combination of multithreaded scanning and treemap navigation. Users can zoom through directory hierarchies, color results by file type or modification time, and filter by file extension, size, or name. The cross-filesystem scan option broadens the scan scope, while the ability to reveal items in the system file manager connects visual analysis with file cleanup. This makes rsdirstat particularly useful when the immediate goal is to understand where disk space is concentrated rather than build a wider storage-management workflow.
The product keeps its focus narrow. Its reporting is split between the interactive GUI and command-line top-N output, while integration and export breadth is limited. That tradeoff suits users who value fast local inspection, cross-platform availability, and open-source access. Buyers who need broader integrations or more extensive reporting workflows should choose an alternative with a wider ecosystem. For straightforward directory and file analysis, rsdirstat offers a clear feature set across all three supported desktop platforms.
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rsdirstat pricing
rsdirstat fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Desktop platforms | macos, linux, windows |
| Treemap view | Yes |
| Application sizes | Not verified |
| File-type breakdown | Yes |
| External drive scans | Not verified |
| Exportable reports | Not verified |
| Scan scope | Files_folders |
| Deployment | Desktop, Cloud |
| Platforms | macOS, Linux, Windows, Web |
| Support | Community |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 23 Sep 2026 |
Alternatives to rsdirstat
- TreeSizeA broad Windows analyzer with strong free features and tiered automation tools.9.3
- WinDirStatA classic Windows analyzer with treemaps, file breakdowns, duplicate detection, and CSV export.9.1
- FilelightA free, open-source disk analyzer with strong KDE integrations and ring-based visuals.9.0
See all rsdirstat alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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