What DissectMac is
DissectMac by DissectMac team is a treemap disk analyzer for macOS. Pricing is freemium (Free tier with paid unlocks at time of writing). The official site is linked below — always download disk tools from the vendor, never from aggregators.
| DissectMac | |
|---|---|
| Vendor | DissectMac team |
| Platform | macOS |
| Pricing | Freemium — Free tier with paid unlocks at time of writing |
| Visualization | Treemap |
| Open source | No |
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。
強み & 弱み
＋ 強み
- Fast local treemaps with live disk monitoring
- Bundled uninstaller covers app leftovers
- Free tier for basic analysis
－ 弱み
- Treemap-only visualization; no sunburst or list-first mode
- Monitoring features overlap with free macOS tools
- Young product with a thin review record
Who DissectMac is for
Fans of treemap visualization on macOS. If instead you want a native Mac sunburst with a staged, Trash-based cleanup and zero telemetry, that's NullDisk's whole pitch.
The NullDisk alternative
- 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.
DissectMac vs NullDisk → · 代替を見る → · 移行ガイド →
よくある質問
Is DissectMac worth it?
DissectMac is worth a look if you like treemap views and freemium pricing on macOS. A fast local treemap with uninstaller and live monitoring. For a native Mac map with a staged cleanup workflow, compare it against NullDisk before deciding.
Is DissectMac safe?
DissectMac is as safe as its workflow: it visualizes usage and deletes on your command. Whatever you choose, prefer tools that stage deletions or use the Trash — which is exactly how NullDisk's collector works.
Does DissectMac work on Apple Silicon?
Yes — DissectMac runs on modern Macs, including Apple Silicon. If nativeness matters to you, NullDisk is built SwiftUI-first for macOS 14 and up.
まとめ
DissectMac: fast local treemaps with live disk monitoring — but treemap-only visualization; no sunburst or list-first mode. Weigh that trade honestly against NullDisk's native map, staged collector, and zero-data promise.
こちらも検討
- GrandPerspective — The tiny open-source treemap that shows your biggest files instantly. (GrandPerspective vs DissectMac →)
- Disk Inventory X — The classic treemap visualizer, revived for Apple Silicon Macs. (Disk Inventory X vs DissectMac →)
- Klarity Disk — A private offline analyzer with treemaps and system monitoring. (Klarity Disk vs DissectMac →)