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.
Spis treści
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Łeb w łeb: NullDisk vs SpacePeek
| NullDisk | SpacePeek | |
|---|---|---|
| Visualization | Sunburst radial map | List |
| Platform | macOS 14+ | macOS |
| Pricing | Paid | Freemium |
| Open source | No (offline, zero-data) | No |
| Cleanup flow | Staged collector → Trash | Direct deletion from lists |
Kluczowe fakty: SpacePeek
| SpacePeek | |
|---|---|
| Vendor | Fu Wang (independent) |
| Platform | macOS |
| Pricing | Freemium — Free tier; Pro is a cheap one-time unlock |
| Visualization | List |
| Open source | No |
Aktualizacja wrzesień 2026 · Ceny się zmieniają — sprawdź u dostawcy. Cena w czasie pisania: Free tier; Pro is a cheap one-time unlock.
NullDisk pasuje, jeśli …
- A radial sunburst map instead of lists or treemaps — see usage at a glance and drill in with a click.
- 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
＋ Mocne strony
- Read-only by design — it cannot delete anything, so it's extra safe
- Peeks inside folders and archives with Finder-style Quick Look
- Very cheap Pro unlock
－ Słabości
- Read-only means no cleanup workflow at all
- No sunburst or treemap overview of a whole drive
- Niche tool, not a full disk analyzer
Częste pytania
What is the best alternative to SpacePeek for Mac?
For most Mac users it's NullDisk: native SwiftUI, a radial sunburst map, a staged removal collector, and zero data collection. SpacePeek users who want list views and freemium pricing will feel at home within minutes.
Is there a free alternative to SpacePeek?
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 SpacePeek to NullDisk?
Note the largest folders SpacePeek flagged, then run the same scan in NullDisk and rebuild the cleanup in its removal collector. The full walkthrough is on our switching guide.
W skrócie
SpacePeek is a capable tool for list fans on macOS. But if you want the whole job — see, stage, and safely remove — done natively on a modern Mac, NullDisk is the upgrade. Przewodnik migracji →