Which fits your needs?
LumaDisk: Mac/Windows users wanting maps, duplicates, and build-cache discovery.
Space Radar: Developers exploring alternative visualizations and an inspectable codebase.
Features, pricing, and workflow
Scroll across to compare
| Feature | LumaDisk | Space Radar |
|---|---|---|
| Best fit | Mac/Windows users wanting maps, duplicates, and build-cache discovery. | Developers exploring alternative visualizations and an inspectable codebase. |
| Visualization | Sunburst, treemap, duplicate and unused-file lists | Sunburst, treemap, and flamegraph |
| Platforms and requirements | macOS (Apple Silicon), Windows | macOS, Windows, Linux (check current packages) |
| Pricing and editions | Seven-day full trial; scanning stays free. Vendor lists $6.89 once for the remaining features. | Free under the MIT license; check repository build/release instructions. |
| Open source | No | Yes |
| Native macOS UI | Cross-platform interface | Cross-platform interface |
| Cleanup workflow | Queue selected items for removal; review the current app’s confirmation and recovery options. | The project documents context-menu actions to locate, open, and delete files or directories; confirm recovery behavior in the selected build. |
| Reports and portability | The cited page does not establish scan-report export. Preserve paths and selections before starting a fresh scan in NullDisk. | Consult the exact build’s save/export controls. Keep any generated data and images; NullDisk does not document importing Space Radar sessions. |
LumaDisk: what stands out
A good fit for Mac/Windows users wanting maps, duplicates, and build-cache discovery.
LumaDisk: strengths
- Sunburst and treemap with live scan updates
- Build-cache radar, duplicate groups, and unused-file lists
- OneDrive/Dropbox connections; iCloud through its local folder
Considerations
- Verify Mac CPU support; current site highlights Apple Silicon
- Features beyond scanning require an unlock after trial
- Google Drive is listed as coming soon
Space Radar: what stands out
A good fit for developers exploring alternative visualizations and an inspectable codebase.
Space Radar: strengths
- Sunburst, treemap, and flamegraph visualizations
- MIT-licensed source for inspection and modification
- Disk and memory visualization in one project
Considerations
- Packaging and dependencies vary across repository versions
- Check the current release for your OS and CPU
- Do not infer cleanup or report formats from the chart selection
For a useful comparison on your own drive, match the scan root, access permissions, and size mode. Chart style changes how you explore the results; it does not by itself establish measurement accuracy.
Common questions
When should I choose LumaDisk?
A good fit for Mac/Windows users wanting maps, duplicates, and build-cache discovery. Seven-day full trial; scanning stays free. Vendor lists $6.89 once for the remaining features.
When should I choose Space Radar?
A good fit for developers exploring alternative visualizations and an inspectable codebase. Free under the MIT license; check repository build/release instructions.
Will both apps show the same size?
Not necessarily. Match the scan root, permissions, exclusions, and logical/allocated-size mode. Hard links, APFS clones, snapshots, sparse files, and cloud placeholders can change totals. A reported size is not a guaranteed amount recovered after deletion.