Best OwlDisk Alternatives in 2026
Updated
20 tools from disk space analyzers ranked against OwlDisk on the same published basis.
- 1OwlDisk vs TreeSize
- 2OwlDisk vs WizTree
- 3OwlDisk vs FolderSizes
- 4OwlDisk vs SizeTrend
- 5OwlDisk vs LumaDisk
- 6OwlDisk vs SpaceMonger
- 7OwlDisk vs Disk Usage Analyzer
- 8OwlDisk vs eDirStat
- 9OwlDisk vs Disk Analyzer Pro
- 10OwlDisk vs StorageRadar
- 11OwlDisk vs Drive Atlas
- 12OwlDisk vs DiskAtlas
- 13OwlDisk vs Space Wizard
- 14OwlDisk vs gdu
- 15OwlDisk vs Filelight
- 16OwlDisk vs Disk Auditor
- 17OwlDisk vs Folder Size
- 18OwlDisk vs WinDirStat
- 19OwlDisk vs QDirStat
- 20OwlDisk vs DiskScope
OwlDisk alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | TreeSize | 8.8 | Free plan | Free | Windows |
| 2 | WizTree | 8.7 | Free plan | $25/mo | Mac, Windows |
| 3 | FolderSizes | 8.3 | Free plan | Free | Windows |
| 4 | SizeTrend | 8.3 | Free plan | Free | Windows |
| 5 | LumaDisk | 8.2 | Free plan | $6.89/mo | Mac, Windows |
| 6 | SpaceMonger | 8.1 | No | — | Windows |
| 7 | Disk Usage Analyzer | 8.1 | Free plan | Free | Linux |
| 8 | eDirStat | 8.1 | No | — | Linux, Mac, Web, Windows |
| 9 | Disk Analyzer Pro | 8.0 | Free plan | Free | Mac, Windows |
| 10 | StorageRadar | 7.9 | Free plan | $9.99/mo | Mac |
| 11 | Drive Atlas | 7.9 | Free plan | $20/mo | Linux, Windows |
| 12 | DiskAtlas | 7.8 | Free plan | $5/mo | Mac |
| 13 | Space Wizard | 7.8 | Free plan | Free | Linux, Mac, Windows |
| 14 | gdu | 7.8 | Free plan | Free | Linux, Mac, Web, Windows |
| 15 | Filelight | 7.7 | No | — | Linux, Windows |
| 16 | Disk Auditor | 7.7 | Free plan | Free | Windows |
| 17 | Folder Size | 7.6 | Free plan | $24.95/mo | Windows |
| 18 | WinDirStat | 7.5 | No | — | Windows |
| 19 | QDirStat | 7.5 | No | — | Linux, Mac |
| 20 | DiskScope | 7.5 | No | — | Linux, Mac, Windows |
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Questions about OwlDisk alternatives
What is the best alternative to OwlDisk?
TreeSize, number 1 in disk space analyzers with a score of 8.8 out of 10. The others here: WizTree, FolderSizes, SizeTrend and 16 more.
What is the best free alternative to OwlDisk?
TreeSize is the best-ranked alternative with a free plan. 14 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.