Best FolderSizes Alternatives in 2026
The top FolderSizes alternatives are TreeSize, WinDirStat and Filelight: 15 disk space analyzers our editors would look at instead of FolderSizes, in our ranking order.
FolderSizes: A detailed Windows analyzer with scheduled reporting, visualizations, and one-time pricing. Where it falls short: windows-only availability limits cross-platform use.
Switching from FolderSizes? For most disk space analyzers buyers the best FolderSizes alternative is TreeSize, built for windows power users and administrators.
Why People Look for a FolderSizes Alternative
- Windows-only availability limits cross-platform use
- Installed-application size analysis is not a dedicated view
- Advanced reporting features require a paid edition
Quick Picks by What You Need
- Best overallTreeSize9.3
Windows power users and administrators
Visit TreeSize - Best free optionTreeSize9.3
Has a free plan
Visit TreeSize
All 15 FolderSizes Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forWindows power users and administrators
- Better than FolderSizes:
- Editor score 9.3 vs 7.9
A broad Windows analyzer with strong free features and tiered automation tools.
- External drive scans
- File-type breakdown
- Exportable reports
9.3/10★★★★★Visit TreeSize -
Best forClassic free Windows disk analysis
- Better than FolderSizes:
- Editor score 9.1 vs 7.9
A classic Windows analyzer with treemaps, file breakdowns, duplicate detection, and CSV export.
- File-type breakdown
- Exportable reports
- Treemap view
9.1/10★★★★★Visit WinDirStat -
Best forKDE users on Linux or Windows
- Better than FolderSizes:
- Editor score 9.0 vs 7.9
A free, open-source disk analyzer with strong KDE integrations and ring-based visuals.
- External drive scans
- Treemap view
9.0/10★★★★☆Visit Filelight -
Best forFast, simple Windows space analysis
- Better than FolderSizes:
- Editor score 8.9 vs 7.9
A focused Windows analyzer with treemaps, duplicate detection, and broad device scanning.
- External drive scans
- File-type breakdown
- Exportable reports
8.9/10★★★★☆Visit WizTree -
Best forEnterprise Windows storage reporting
- Better than FolderSizes:
- Editor score 8.8 vs 7.9
A mature Windows tool for recurring storage analysis, reporting, duplicates, and permissions.
- External drive scans
- File-type breakdown
- Exportable reports
8.8/10★★★★☆Visit SpaceObServer -
Best forPaid Windows treemap cleanup
- Better than FolderSizes:
- Editor score 8.7 vs 7.9
A paid Windows analyzer for visual storage mapping and targeted cleanup.
- File-type breakdown
- Treemap view
8.7/10★★★★☆Visit SpaceMonger -
Best forSimple free Mac large-file finding
- Better than FolderSizes:
- Editor score 8.5 vs 7.9
A free Mac utility for finding large files and folders without extra reporting layers.
8.5/10★★★★☆Try OmniDiskSweeper -
Best forStraightforward free Linux desktop analysis
- Better than FolderSizes:
- Editor score 8.3 vs 7.9
A free, open-source Linux analyzer for visual folder and filesystem usage.
- External drive scans
- Treemap view
8.3/10★★★★☆Visit site -
Best forEnterprise Windows storage reporting
A Windows-focused analyzer for detailed storage reporting, classification, and automation.
- File-type breakdown
- Exportable reports
7.8/10★★★★☆Visit DiskSavvy -
Best forUsers scanning local, network, USB, or removable drives
A desktop disk analyzer with detailed file reports, cleanup tools, and drive scanning.
- External drive scans
- File-type breakdown
- Exportable reports
7.7/10★★★★☆Visit site -
Best forWindows teams needing storage trends
A capable Windows analyzer with strong history tools, but Professional is a paid upgrade.
- Application sizes
- External drive scans
- File-type breakdown
7.6/10★★★★☆Visit SizeTrend -
Best forCross-platform open-source users
A broad, open-source storage analyzer for users who want visual scans and cleanup tools.
- External drive scans
- File-type breakdown
- Exportable reports
7.5/10★★★★☆Visit eDirStat -
Best forFree users needing rich Windows analysis
A feature-rich free analyzer for visualizing, comparing, and monitoring Windows storage.
- Exportable reports
- Treemap view
7.4/10★★★★☆Visit Disk Auditor -
Best forWindows users needing free reports and snapshots
A free, open-source Windows analyzer with detailed visual reports and scan comparisons.
- File-type breakdown
- Exportable reports
- Treemap view
7.3/10★★★★☆Visit Capacitra -
Best forMac users wanting cleanup-focused analysis
A Mac-focused analyzer with deep visibility and confirmation-first cleanup controls.
- Application sizes
- File-type breakdown
- Exportable reports
7.2/10★★★★☆Visit StorageRadar
FolderSizes Alternatives: Common Questions
What is the best alternative to FolderSizes?
TreeSize: #1 in our Disk Space Analyzers ranking, with an editor score of 9.3 out of 10. A broad Windows analyzer with strong free features and tiered automation tools.
Is there a free alternative to FolderSizes?
Yes. TreeSize, WinDirStat, Filelight, WizTree and OmniDiskSweeper have a free plan or a free tier (12 of the 15 alternatives on this page).
Why do people look for FolderSizes alternatives?
Windows-only availability limits cross-platform use; Installed-application size analysis is not a dedicated view; Advanced reporting features require a paid edition.
How do I switch from FolderSizes?
Export your data from FolderSizes (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel FolderSizes.
How to Switch from FolderSizes
- Export your data from FolderSizes (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel FolderSizes.
FolderSizes vs Each Alternative
| # | Tool | Free plan | Paid from | Desktop platforms | Treemap view | File-type breakdown | Score |
|---|---|---|---|---|---|---|---|
| 9 | FolderSizes | Yes | $30 one-time | Windows | Yes | Yes | 7.9 |
| 1 | TreeSize | Yes | Windows | Yes | Yes | 9.3 | |
| 2 | WinDirStat | Yes | Free | Windows | Yes | Yes | 9.1 |
| 3 | Filelight | Yes | Free | Linux, Windows | Yes | 9.0 | |
| 4 | WizTree | Yes | Windows, macOS | Yes | Yes | 8.9 | |
| 5 | SpaceObServer | No | windows | Yes | Yes | 8.8 | |
| 6 | SpaceMonger | Windows | Yes | Yes | 8.7 | ||
| 7 | OmniDiskSweeper | Yes | Free | macos | 8.5 | ||
| 8 | Disk Usage Analyzer | Yes | Free | Linux | Yes | No | 8.3 |
| 9 | DiskSavvy | Windows | Yes | 7.8 | |||
| 10 | Disk Analyzer Pro | Yes | windows, macos | Yes | 7.7 | ||
| 11 | SizeTrend | Yes | $69.99 one-time | windows | Yes | 7.6 | |
| 12 | eDirStat | Yes | Free | windows, macos, linux | Yes | Yes | 7.5 |
| 13 | Disk Auditor | Yes | Free | Windows | Yes | 7.4 | |
| 14 | Capacitra | Yes | Free | windows | Yes | Yes | 7.3 |
| 15 | StorageRadar | Yes | $9.99 one-time | macos | Yes | Yes | 7.2 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update