Best WhatSize Alternatives in 2026
Updated
20 tools from disk space analyzers ranked against WhatSize on the same published basis.
- 1WhatSize vs TreeSize
- 2WhatSize vs WizTree
- 3WhatSize vs FolderSizes
- 4WhatSize vs SizeTrend
- 5WhatSize vs LumaDisk
- 6WhatSize vs SpaceMonger
- 7WhatSize vs Disk Usage Analyzer
- 8WhatSize vs eDirStat
- 9WhatSize vs Disk Analyzer Pro
- 10WhatSize vs StorageRadar
- 11WhatSize vs Drive Atlas
- 12WhatSize vs DiskAtlas
- 13WhatSize vs Space Wizard
- 14WhatSize vs gdu
- 15WhatSize vs Filelight
- 16WhatSize vs Disk Auditor
- 17WhatSize vs Folder Size
- 18WhatSize vs WinDirStat
- 19WhatSize vs QDirStat
- 20WhatSize vs DiskScope
WhatSize 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 |
Make your tool an alternative to WhatSize
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about WhatSize alternatives
What is the best alternative to WhatSize?
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 WhatSize?
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.