Best DiskSizer Alternatives in 2026
Updated
20 apps from disk space analyzers ranked against DiskSizer on the same published basis.
- 1DiskSizer vs TreeSize
- 2DiskSizer vs WizTree
- 3DiskSizer vs Disk Usage Analyzer
- 4DiskSizer vs FolderSizes
- 5DiskSizer vs SizeTrend
- 6DiskSizer vs Disk Analyzer Pro
- 7DiskSizer vs StorageRadar
- 8DiskSizer vs Disk Auditor
- 9DiskSizer vs Drive Atlas
- 10DiskSizer vs DiskAtlas
- 11DiskSizer vs LumaDisk
- 12DiskSizer vs Folder Size
- 13DiskSizer vs Space Wizard
- 14DiskSizer vs OverClean
- 15DiskSizer vs gdu
- 16DiskSizer vs SpaceMap
- 17DiskSizer vs eDirStat
- 18DiskSizer vs DiskBrain
- 19DiskSizer vs agedu
- 20DiskSizer vs ncdu
DiskSizer alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | TreeSize | 8.0 | Free plan | Free | Windows |
| 2 | WizTree | 8.0 | Free plan | $25/mo | Mac, Windows |
| 3 | Disk Usage Analyzer | 7.8 | Free plan | Free | Linux |
| 4 | FolderSizes | 7.8 | Free plan | Free | Windows |
| 5 | SizeTrend | 7.8 | Free plan | Free | Windows |
| 6 | Disk Analyzer Pro | 7.7 | Free plan | Free | Mac, Windows |
| 7 | StorageRadar | 7.6 | Free plan | $9.99/mo | Mac |
| 8 | Disk Auditor | 7.5 | Free plan | Free | Windows |
| 9 | Drive Atlas | 7.5 | Free plan | $20/mo | Linux, Windows |
| 10 | DiskAtlas | 7.4 | Free plan | $5/mo | Mac |
| 11 | LumaDisk | 7.4 | Free plan | $6.89/mo | Mac, Windows |
| 12 | Folder Size | 7.3 | Free plan | $24.95/mo | Windows |
| 13 | Space Wizard | 7.3 | Free plan | Free | Linux, Mac, Windows |
| 14 | OverClean | 7.2 | Free plan | $9.99/mo | Mac |
| 15 | gdu | 7.2 | Free plan | Free | Linux, Mac, Web, Windows |
| 16 | SpaceMap | 7.1 | Free plan | Free | Mac |
| 17 | eDirStat | 7.0 | No | — | Linux, Mac, Web, Windows |
| 18 | DiskBrain | 7.0 | Free plan | $2/mo | Windows |
| 19 | agedu | 7.0 | Free plan | Free | Linux, Web |
| 20 | ncdu | 7.0 | Free plan | Free | Linux, Mac, self-hosted, Windows |
Make your app an alternative to DiskSizer
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about DiskSizer alternatives
What is the best alternative to DiskSizer?
TreeSize, number 1 in disk space analyzers with a score of 8.0 out of 10. The others here: WizTree, Disk Usage Analyzer, FolderSizes and 16 more.
What is the best free alternative to DiskSizer?
TreeSize is the best-ranked alternative with a free plan. 19 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.