Choose by workflow
A Rust/GPUI analyzer with two maps, build-cache detection, and duplicate tools. If you need something different, compare these five options by the job they do. Choose by platform, features, and how you prefer to review files.
Mac users managing local/remote storage, and developers who need Git-aware cleanup or scriptable disk reports.
Users wanting one account-based analyzer across Mac, Windows, and Linux.
People wanting a free open-source GUI across desktop systems and remote storage.
Developers exploring alternative visualizations and an inspectable codebase.
Mac users who favor column browsing and integrated duplicate/cleanup tools.
Scroll across to compare
| Feature | LumaDisk | NullDisk |
|---|---|---|
| Best fit | Mac/Windows users wanting maps, duplicates, and build-cache discovery. | Mac users managing local/remote storage, and developers who need Git-aware cleanup or scriptable disk reports. |
| Visualization | Sunburst, treemap, duplicate and unused-file lists | Radial map, treemap, and file list; CLI terminal treemap |
| Platforms and requirements | macOS (Apple Silicon), Windows | Mac app: macOS 14+; CLI: macOS, Linux, Windows |
| Pricing and editions | Seven-day full trial; scanning stays free. Vendor lists $6.89 once for the remaining features. | Direct Mac edition free with reminders; optional $9.99 one-time personal license or team seat removes reminders. App Store terms are separate. |
| Open source | No | No |
| Native macOS UI | Cross-platform interface | Yes |
| Cleanup workflow | Queue selected items for removal; review the current app’s confirmation and recovery options. | Review source and action: local Trash, explicit permanent removal, or backup/delete; remote and cloud actions depend on the destination. |
| Reports and portability | The cited page does not establish scan-report export. Preserve paths and selections before starting a fresh scan in NullDisk. | CLI produces JSON/NDJSON scan reports. Third-party scan files are not directly imported into the Mac GUI. |
The cited page does not establish scan-report export. Preserve paths and selections before starting a fresh scan in NullDisk.
Mac/Windows users wanting maps, duplicates, and build-cache discovery. Keep it if that matches your needs. Consider a change for a specific requirement such as a different chart, remote sources, report exports, or development cleanup.
GrandPerspective and SquirrelDisk offer free open-source analysis. OmniDiskSweeper is free on Mac. All direct Mac features in NullDisk are free with reminders; reminder removal is optional. Freeware does not necessarily mean open source.
No. Keep any historical exports you need and run a fresh scan of the same location. NullDisk does not import these apps’ saved scans or cleanup queues.