正面对决
| NullDisk | OmniDiskSweeper | |
|---|---|---|
| Visualization | Sunburst | List |
| Platform | macOS 14+ | macOS |
| Pricing | Paid One-time purchase — see nulldisk.app/download for current pricing | Free Free freeware from The Omni Group |
| Open source | No | No |
| Native Mac | Yes | Yes |
2026年9月更新 · 价格会变,请以供应商为准。
NullDisk
A native macOS disk-space analyzer with an interactive radial map.
＋ NullDisk: 优点
- 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: 缺点
- 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 →
OmniDiskSweeper
A largest-first column browser for quick, no-frills cleanup.
＋ OmniDiskSweeper: 优点
- Completely free from a trusted Mac developer
- Largest-first sorting finds big folders with zero learning curve
- Lightweight and fast on any Mac
－ OmniDiskSweeper: 缺点
- No visual map at all — pure ranked lists
- Dated interface that hasn't meaningfully evolved in years
- No collector, previews, or safety rails beyond the Trash
阅读评测: OmniDiskSweeper → · OmniDiskSweeper 查看替代品 →
结论: NullDisk vs OmniDiskSweeper
Choose NullDisk if you want a native Mac sunburst, allocated-size honesty, and a staged collector with zero telemetry. Choose OmniDiskSweeper if you prefer list views for free on macOS.
常见问题
Which is better, NullDisk or OmniDiskSweeper?
NullDisk brings sunburst views to macOS 14+ at paid pricing; OmniDiskSweeper answers with list views on macOS at free 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 OmniDiskSweeper to NullDisk?
Note the largest folders OmniDiskSweeper flagged, run the same scan in NullDisk, and rebuild the cleanup in its removal collector. The step-by-step is on our switching guide.