Which fits your needs?
DaisyDisk: Mac users who want a sunburst, cloud connections, and snapshot tools.
Space Radar: Developers exploring alternative visualizations and an inspectable codebase.
Features, pricing, and workflow
Scroll across to compare
| Feature | DaisyDisk | Space Radar |
|---|---|---|
| Best fit | Mac users who want a sunburst, cloud connections, and snapshot tools. | Developers exploring alternative visualizations and an inspectable codebase. |
| Visualization | Sunburst and file list | Sunburst, treemap, and flamegraph |
| Platforms and requirements | macOS | macOS, Windows, Linux (check current packages) |
| Pricing and editions | One-time license; free trial. Check vendor pricing and direct/App Store edition differences. | Free under the MIT license; check repository build/release instructions. |
| Open source | No | Yes |
| Native macOS UI | Yes | Cross-platform interface |
| Cleanup workflow | Collector stages items, then permanently removes them after confirmation and a cancellation countdown. It does not use macOS Trash. | 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 overview does not establish a portable scan-report format. Preserve paths or screenshots and check the current manual before migrating. | Consult the exact build’s save/export controls. Keep any generated data and images; NullDisk does not document importing Space Radar sessions. |
DaisyDisk: what stands out
A good fit for Mac users who want a sunburst, cloud connections, and snapshot tools.
DaisyDisk: strengths
- Sunburst navigation with Quick Look previews
- Physical-size accounting for clones and hard links
- Cloud connections and macOS snapshot management
Considerations
- Mac app; no Windows or Linux desktop edition
- Full functionality requires a paid license after trial
- Some capabilities differ between direct and App Store editions
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 DaisyDisk?
A good fit for Mac users who want a sunburst, cloud connections, and snapshot tools. One-time license; free trial. Check vendor pricing and direct/App Store edition differences.
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.