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
4free plans on this page
$4.99/molowest paid tier
9 Oct 2026last checked
4 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 |
|---|---|---|---|---|---|---|---|
| 51 | SpaceManWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 6.2 |
| 52 | rsdirstatWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 6.2 |
| 53 | Disk XrayMac | One bar | — | — | 1 of 6 | $29/mo | 6.1 |
| 54 | duvisWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 6.1 |
| 55 | DiskPilotWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 6.1 |
| 56 | RaDiskWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 6.1 |
| 57 | deltaWindows · Mac · Linux | Three bars | — | 3 of 6 | Free | 6.1 | |
| 58 | StorageScopeMac | No signal | — | — | 1 of 6 | — | 6.0 |
| 59 | Q-DirWindows | Two bars | — | 1 of 6 | Free | 6.0 | |
| 60 | DaisyDiskMac | One bar | — | — | 1 of 6 | $9.99/mo | 5.9 |
| 61 | MacStorageAtlasMac | No signal | — | — | 1 of 6 | — | 5.9 |
| 62 | DiskDiveWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 5.9 |
| 63 | WalkerLinux | Two bars | — | 1 of 6 | Free | 5.9 | |
| 64 | TreeLensWindows | One bar | — | — | 1 of 6 | — | 5.8 |
| 65 | SpareDiskMac | One bar | — | — | 1 of 6 | $4.99/mo | 5.7 |
| 66 | DiskSizerWindows | No signal | — | — | 1 of 6 | — | 5.7 |
| 67 | DucLinux | One bar | — | — | 1 of 6 | — | 5.7 |
| 68 | diskbloomMac · Linux | One bar | — | — | 2 of 6 | — | 5.7 |
| 69 | diskonautWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 5.7 |
| 70 | DursWindows · Mac · Linux · Self-hosted | Three bars | — | 3 of 6 | Free | 5.7 | |
| 71 | HDGraphWindows | One bar | — | — | 1 of 6 | — | 5.6 |
| 72 | Space GremlinMac | One bar | — | — | 1 of 6 | $4.99/mo | 5.5 |
| 73 | ValleySoft Disk AnalyzerWindows | No signal | — | — | 1 of 6 | — | 5.5 |
| 74 | DiskusWindows | No signal | — | — | 1 of 6 | — | 5.5 |
| 75 | OwlDiskMac | No signal | — | — | 1 of 6 | — | 5.5 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Desktop platforms | Treemap view |
|---|---|---|---|---|---|---|---|---|
| 51 | SpaceMan | 6.2 | No | — | — | — | windows, macos, linux | Yes |
| 52 | rsdirstat | 6.2 | No | — | Yes | — | macos, linux, windows | Yes |
| 53 | Disk Xray | 6.1 | No | $29/mo | — | $29one-time | macos | — |
| 54 | duvis | 6.1 | No | — | Yes | — | windows, macos, linux | Yes |
| 55 | DiskPilot | 6.1 | No | — | Yes | — | windows, macos, linux | Yes |
| 56 | RaDisk | 6.1 | No | — | Yes | — | windows, macos, linux | — |
| 57 | delta | 6.1 | Free plan | Free | — | — | — | — |
| 58 | StorageScope | 6.0 | No | — | Yes | — | macos | — |
| 59 | Q-Dir | 6.0 | Free plan | Free | Yes | — | windows | — |
| 60 | DaisyDisk | 5.9 | No | $9.99/mo | No | $9.99one-time | macos | Yes |
| 61 | MacStorageAtlas | 5.9 | No | — | Yes | — | macos | Yes |
| 62 | DiskDive | 5.9 | No | — | Yes | — | macos, windows, linux | Yes |
| 63 | Walker | 5.9 | Free plan | Free | Yes | — | linux | — |
| 64 | TreeLens | 5.8 | No | — | Yes | — | windows | Yes |
| 65 | SpareDisk | 5.7 | No | $4.99/mo | No | $4.99one-time | macos | Yes |
| 66 | DiskSizer | 5.7 | No | — | Yes | — | windows | Yes |
| 67 | Duc | 5.7 | No | — | Yes | — | Linux | No |
| 68 | diskbloom | 5.7 | No | — | — | — | macos, linux | Yes |
| 69 | diskonaut | 5.7 | No | — | Yes | — | Linux, macOS, Windows | Yes |
| 70 | Durs | 5.7 | Free plan | Free | Yes | — | windows, macos, linux | No |
| 71 | HDGraph | 5.6 | No | — | Yes | — | windows | No |
| 72 | Space Gremlin | 5.5 | No | $4.99/mo | No | $4.99one-time | macos | Yes |
| 73 | ValleySoft Disk Analyzer | 5.5 | No | — | — | — | windows | — |
| 74 | Diskus | 5.5 | No | — | Yes | — | windows | No |
| 75 | OwlDisk | 5.5 | No | — | Yes | — | macos | No |
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