NullDisk our pick
A native macOS disk-space analyzer with an interactive radial map. Native SwiftUI, allocated-size honesty, staged Trash-based removal, zero data collection.
Sommaire
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Nektony Disk Space Analyzer Pro
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Face à face: NullDisk vs LumaDisk
| NullDisk | LumaDisk | |
|---|---|---|
| Visualization | Sunburst radial map | Sunburst |
| Platform | macOS 14+ | macOS + Windows |
| Pricing | Paid | Paid |
| Open source | No (offline, zero-data) | No |
| Cleanup flow | Staged collector → Trash | Varies by tool |
L'essentiel: LumaDisk
| LumaDisk | |
|---|---|
| Vendor | MbApps |
| Platform | macOS + Windows |
| Pricing | Paid — Paid one-time purchase (around $7 at time of writing) |
| Visualization | Sunburst |
| Open source | No |
À jour en septembre 2026 · Les prix évoluent — vérifiez auprès du fournisseur. Prix au bouclage: Paid one-time purchase (around $7 at time of writing).
NullDisk est fait pour vous si …
- Truly native: Swift and SwiftUI on macOS, not a cross-platform toolkit.
- Honest one-time purchase instead of subscriptions or gated tiers.
- Fully offline with a published zero-data policy — nothing ever leaves your Mac.
Pros & cons
＋ Points forts
- Modern sunburst visualization on both Mac and Windows
- Fast scans with a clean, contemporary interface
- Affordable one-time price
－ Points faibles
- Cross-platform toolkit feel rather than fully native Mac UI
- Newer app with a shorter track record than incumbents
- Cleanup tooling is lighter than specialist cleaners
Questions fréquentes
What is the best alternative to LumaDisk for Mac?
For most Mac users it's NullDisk: native SwiftUI, a radial sunburst map, a staged removal collector, and zero data collection. LumaDisk users who want sunburst views and paid pricing will feel at home within minutes.
Is there a free alternative to LumaDisk?
Yes — GrandPerspective and Disk Inventory X are free and open source with genuine treemap analysis. They lack NullDisk's collector workflow and sunburst map, but they find the biggest hogs fast.
How do I switch from LumaDisk to NullDisk?
Note the largest folders LumaDisk flagged, then run the same scan in NullDisk and rebuild the cleanup in its removal collector. The full walkthrough is on our switching guide.
En bref
LumaDisk is a capable tool for sunburst fans on macOS + Windows. But if you want the whole job — see, stage, and safely remove — done natively on a modern Mac, NullDisk is the upgrade. Guide de migration →