Best SpaceObServer Alternatives in 2026
Updated
20 apps from disk space analyzers ranked against SpaceObServer on the same published basis.
- 1SpaceObServer vs WizTree
- 2SpaceObServer vs TreeSize
- 3SpaceObServer vs FolderSizes
- 4SpaceObServer vs SizeTrend
- 5SpaceObServer vs Disk Analyzer Pro
- 6SpaceObServer vs StorageRadar
- 7SpaceObServer vs Drive Atlas
- 8SpaceObServer vs Disk Auditor
- 9SpaceObServer vs LumaDisk
- 10SpaceObServer vs Filelight
- 11SpaceObServer vs SpaceMonger
- 12SpaceObServer vs DiskAtlas
- 13SpaceObServer vs Space Wizard
- 14SpaceObServer vs WinDirStat
- 15SpaceObServer vs eDirStat
- 16SpaceObServer vs Folder Size
- 17SpaceObServer vs gdu
- 19SpaceObServer vs Disk Usage Analyzer
- 20SpaceObServer vs QDirStat
- 21SpaceObServer vs OmniDiskSweeper
SpaceObServer alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | WizTree | 9.2 | Free plan | $25/mo | Mac, Windows |
| 2 | TreeSize | 9.0 | Free plan | Free | Windows |
| 3 | FolderSizes | 8.8 | Free plan | Free | Windows |
| 4 | SizeTrend | 8.7 | Free plan | Free | Windows |
| 5 | Disk Analyzer Pro | 8.5 | Free plan | Free | Mac, Windows |
| 6 | StorageRadar | 8.4 | Free plan | $9.99/mo | Mac |
| 7 | Drive Atlas | 8.4 | Free plan | $20/mo | Linux, Windows |
| 8 | Disk Auditor | 8.2 | Free plan | Free | Windows |
| 9 | LumaDisk | 8.2 | Free plan | $6.89/mo | Mac, Windows |
| 10 | Filelight | 8.1 | No | — | Linux, Windows |
| 11 | SpaceMonger | 8.1 | No | — | Windows |
| 12 | DiskAtlas | 8.1 | Free plan | $5/mo | Mac |
| 13 | Space Wizard | 8.1 | Free plan | Free | Linux, Mac, Windows |
| 14 | WinDirStat | 8.0 | No | — | Windows |
| 15 | eDirStat | 8.0 | No | — | Linux, Mac, Windows |
| 16 | Folder Size | 8.0 | Free plan | $24.95/mo | Windows |
| 17 | gdu | 8.0 | Free plan | Free | Linux, Mac, Web, Windows |
| 19 | Disk Usage Analyzer | 7.8 | No | — | Linux |
| 20 | QDirStat | 7.8 | No | — | Linux, Mac |
| 21 | OmniDiskSweeper | 7.7 | No | — | Mac |
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Questions about SpaceObServer alternatives
What is the best alternative to SpaceObServer?
WizTree, number 1 in disk space analyzers with a score of 9.2 out of 10. The others here: TreeSize, FolderSizes, SizeTrend and 16 more.
What is the best free alternative to SpaceObServer?
WizTree is the best-ranked alternative with a free plan. 13 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: documentation depth, a free tier and the platforms it runs on.