Best Disk Space Analyzers in 2026
Updated
104 disk space analyzers ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
104ranked
5free plans on this page
$1.25/molowest paid tier
8 Oct 2026last checked
5 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 26 | Disk Usage AnalyzerLinux | Two bars | — | 1 of 6 | Free | 6.7 | |
| 27 | Disk AnalyzerWindows | Two bars | — | 1 of 6 | Free | 6.7 | |
| 28 | DiskTreeMac | Two bars | — | 1 of 6 | $1.25/mo | 6.7 | |
| 29 | dustWindows · Mac · Linux | Three bars | — | 3 of 6 | Free | 6.7 | |
| 30 | CapacitraWindows | One bar | — | — | 1 of 6 | — | 6.6 |
| 31 | QDirStatMac · Linux | One bar | — | — | 2 of 6 | — | 6.6 |
| 32 | DiskScopeWindows · Mac · Linux | Two bars | — | — | 3 of 6 | — | 6.6 |
| 33 | SpaceMongerWindows | One bar | — | — | 1 of 6 | — | 6.5 |
| 34 | Flare ScanMac | One bar | — | — | 1 of 6 | — | 6.5 |
| 35 | NeodiskMac | One bar | — | — | 1 of 6 | — | 6.5 |
| 36 | DiskMapWindows | One bar | — | — | 1 of 6 | — | 6.5 |
| 37 | Drive SonarWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 6.5 |
| 38 | SpaceObServerWindows | One bar | — | — | 1 of 6 | — | 6.4 |
| 39 | SpaceSnifferWindows | One bar | — | — | 1 of 6 | — | 6.4 |
| 40 | ccduMac · Linux | No signal | — | — | 2 of 6 | — | 6.4 |
| 41 | RadixMac | One bar | — | — | 1 of 6 | — | 6.4 |
| 42 | DiskSavvyWindows | One bar | — | — | 1 of 6 | — | 6.3 |
| 43 | SpacieMac | One bar | — | — | 1 of 6 | — | 6.3 |
| 44 | AppleTreeMac | One bar | — | — | 1 of 6 | — | 6.3 |
| 45 | DiskLensWindows · Mac | One bar | — | — | 2 of 6 | — | 6.3 |
| 46 | SpaceBrowserWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 6.3 |
| 47 | dumapWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 6.3 |
| 48 | DiskMapperMac | Two bars | — | 1 of 6 | Free | 6.3 | |
| 49 | SpaceManWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 6.2 |
| 50 | rsdirstatWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 6.2 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Desktop platforms | Treemap view |
|---|---|---|---|---|---|---|---|---|
| 26 | Disk Usage Analyzer | 6.7 | Free plan | Free | Yes | — | Linux | Yes |
| 27 | Disk Analyzer | 6.7 | Free plan | Free | Yes | — | windows | Yes |
| 28 | DiskTree | 6.7 | Free plan | $1.25/mo | Yes | — | macos | Yes |
| 29 | dust | 6.7 | Free plan | Free | Yes | — | linux, macOS, Windows | No |
| 30 | Capacitra | 6.6 | No | — | Yes | — | windows | Yes |
| 31 | QDirStat | 6.6 | No | — | Yes | — | Linux, BSD, Unix-like systems; macOS | Yes |
| 32 | DiskScope | 6.6 | No | — | Yes | — | windows, macos, linux | Yes |
| 33 | SpaceMonger | 6.5 | No | — | No | — | Windows | Yes |
| 34 | Flare Scan | 6.5 | No | — | Yes | — | macos | Yes |
| 35 | Neodisk | 6.5 | No | — | Yes | — | macOS | Yes |
| 36 | DiskMap | 6.5 | No | — | Yes | — | windows | Yes |
| 37 | Drive Sonar | 6.5 | No | — | — | — | windows, macos, linux | Yes |
| 38 | SpaceObServer | 6.4 | No | — | No | — | windows | Yes |
| 39 | SpaceSniffer | 6.4 | No | — | Yes | — | windows | Yes |
| 40 | ccdu | 6.4 | No | — | Yes | — | linux, macos | Yes |
| 41 | Radix | 6.4 | No | — | Yes | — | macos | Yes |
| 42 | DiskSavvy | 6.3 | No | — | No | — | Windows | No |
| 43 | Spacie | 6.3 | No | — | Yes | — | macos | Yes |
| 44 | AppleTree | 6.3 | No | — | Yes | — | macos | Yes |
| 45 | DiskLens | 6.3 | No | — | Yes | — | macOS, Windows | No |
| 46 | SpaceBrowser | 6.3 | No | — | Yes | — | Windows, Linux, macOS | Yes |
| 47 | dumap | 6.3 | No | — | — | — | windows, macos, linux | Yes |
| 48 | DiskMapper | 6.3 | Free plan | Free | Yes | — | macos | Yes |
| 49 | SpaceMan | 6.2 | No | — | — | — | windows, macos, linux | Yes |
| 50 | rsdirstat | 6.2 | No | — | Yes | — | macos, linux, windows | Yes |
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