直接比較
| GrandPerspective | NullDisk | |
|---|---|---|
| Visualization | Treemap | Sunburst |
| Platform | macOS | macOS 14+ |
| Pricing | Open source Free and open source (GPL); small App Store fee for the packaged build | Paid One-time purchase — see nulldisk.app/download for current pricing |
| Open source | Yes | No |
| Native Mac | Yes | Yes |
2026年9月更新 · 価格は変動します。提供元でご確認ください。
GrandPerspective
The tiny open-source treemap that shows your biggest files instantly.
＋ GrandPerspective: 強み
- Free and open source with a tiny footprint
- Treemap rectangles make the single biggest space hog obvious
- Fast rescans and a loyal power-user community
－ GrandPerspective: 弱み
- Treemap UI is utilitarian — no sunburst, no guided cleanup
- No collector tray or duplicate finder; deletion is file-by-file
- Development pace is slow compared with commercial rivals
レビューを読む: GrandPerspective → · GrandPerspective 代替を見る →
NullDisk
A native macOS disk-space analyzer with an interactive radial map.
＋ NullDisk: 強み
- Native SwiftUI on macOS 14+, Apple Silicon and Intel
- Allocated-size measurement with hard-link dedup
- Staged collector-to-Trash workflow with Quick Look inspector
－ NullDisk: 弱み
- macOS only — no Windows or Linux build
- Paid license with no free tier
- No duplicate finder or all-in-one cleaner extras
NullDisk features → · Download NullDisk →
結論: GrandPerspective vs NullDisk
Choose NullDisk if you want a native Mac sunburst, allocated-size honesty, and a staged collector with zero telemetry. Choose GrandPerspective if you prefer treemap views for free on macOS.
よくある質問
Which is better, GrandPerspective or NullDisk?
GrandPerspective brings treemap views to macOS at open source pricing; NullDisk answers with sunburst views on macOS 14+ at paid pricing. If you want native Mac polish with a staged, Trash-based cleanup, NullDisk takes it — otherwise pick by OS and map taste.
How do I switch from GrandPerspective to NullDisk?
Note the largest folders GrandPerspective flagged, run the same scan in NullDisk, and rebuild the cleanup in its removal collector. The step-by-step is on our switching guide.