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DissectMac vs GrandPerspective

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

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DissectMacGrandPerspective
VisualizationTreemapTreemap
PlatformmacOSmacOS
PricingFreemium
Free tier with paid unlocks at time of writing
Open source
Free and open source (GPL); small App Store fee for the packaged build
Open sourceNoYes
Native MacYesYes

Actualizado en septiembre de 2026 · Los precios cambian: verifícalos con el proveedor.

DissectMac

A fast local treemap with uninstaller and live monitoring.

+ DissectMac: Puntos fuertes

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

- DissectMac: Puntos débiles

  • Treemap-only visualization; no sunburst or list-first mode
  • Monitoring features overlap with free macOS tools
  • Young product with a thin review record

Leer el análisis: DissectMac → · DissectMac Ver alternativas →

GrandPerspective

The tiny open-source treemap that shows your biggest files instantly.

+ GrandPerspective: Puntos fuertes

  • Free and open source with a tiny footprint
  • Treemap rectangles make the single biggest space hog obvious
  • Fast rescans and a loyal power-user community

- GrandPerspective: Puntos débiles

  • Treemap UI is utilitarian — no sunburst, no guided cleanup
  • No collector tray or duplicate finder; deletion is file-by-file
  • Development pace is slow compared with commercial rivals

Leer el análisis: GrandPerspective → · GrandPerspective Ver alternativas →

Veredicto: DissectMac vs GrandPerspective

Choose DissectMac if you want treemap visualization on macOS. Choose GrandPerspective if you prefer treemap views for free 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.

Preguntas frecuentes

Which is better, DissectMac or GrandPerspective?

DissectMac wins on treemap visualization for macOS; GrandPerspective wins on treemap views for macOS. On price, Freemium (DissectMac) vs Open source (GrandPerspective). 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 GrandPerspective wins on price.

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