直接比較

DissectMac対WhatSize

Two analyzers, one disk. DissectMac brings treemap views to macOS; WhatSize answers with list views on macOS. Here's the honest head-to-head — and the third option nobody told you about.

直接比較

DissectMacWhatSize
VisualizationTreemapList
PlatformmacOSmacOS
PricingFreemium
Free tier with paid unlocks at time of writing
Paid
Paid one-time license (around $15 at time of writing)
Open sourceNoNo
Native MacYesYes

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。

DissectMac

A fast local treemap with uninstaller and live monitoring.

+ DissectMac: 強み

  • Fast local treemaps with live disk monitoring
  • Bundled uninstaller covers app leftovers
  • Free tier for basic analysis

- DissectMac: 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

レビューを読む: DissectMac → · DissectMac 代替を見る →

WhatSize

A fast measuring sorter with column views and cleanup tools.

+ WhatSize: 強み

  • Deep measuring with column, outline, and chart views
  • Finds large, duplicate, and orphaned files beyond simple sizes
  • Appeals to power users who live in column browsers

- WhatSize: 弱み

  • Dense, technical UI with a real learning curve
  • Paid license with no free tier for casual use
  • Visualization is secondary to tables and lists

レビューを読む: WhatSize → · WhatSize 代替を見る →

結論: DissectMac vs WhatSize

Choose DissectMac if you want treemap visualization on macOS. Choose WhatSize if you prefer list views at paid pricing on macOS. And if you want a native Mac sunburst with a staged collector and zero telemetry, NullDisk is the third option that beats both on workflow.

よくある質問

Which is better, DissectMac or WhatSize?

DissectMac wins on treemap visualization for macOS; WhatSize wins on list views for macOS. On price, Freemium (DissectMac) vs Paid (WhatSize). The honest answer depends on your OS and whether you prefer maps or lists — read the verdict below.

Is there something better than both?

If you want a native Mac sunburst with allocated-size honesty, a staged removal collector, and zero data collection, NullDisk beats both on workflow — even where DissectMac or WhatSize wins on price.

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