Face à face
| GrandPerspective | OmniDiskSweeper | |
|---|---|---|
| Visualization | Treemap | List |
| Platform | macOS | macOS |
| Pricing | Open source Free and open source (GPL); small App Store fee for the packaged build | Free Free freeware from The Omni Group |
| Open source | Yes | No |
| Native Mac | Yes | Yes |
À jour en septembre 2026 · Les prix évoluent — vérifiez auprès du fournisseur.
GrandPerspective
The tiny open-source treemap that shows your biggest files instantly.
＋ GrandPerspective: Points forts
- 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: Points faibles
- 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
Lire le test: GrandPerspective → · GrandPerspective Voir les alternatives →
OmniDiskSweeper
A largest-first column browser for quick, no-frills cleanup.
＋ OmniDiskSweeper: Points forts
- Completely free from a trusted Mac developer
- Largest-first sorting finds big folders with zero learning curve
- Lightweight and fast on any Mac
－ OmniDiskSweeper: Points faibles
- 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
Lire le test: OmniDiskSweeper → · OmniDiskSweeper Voir les alternatives →
Verdict: GrandPerspective vs OmniDiskSweeper
Choose GrandPerspective if you want treemap visualization with open-source transparency on macOS. Choose OmniDiskSweeper if you prefer list 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.
Questions fréquentes
Which is better, GrandPerspective or OmniDiskSweeper?
GrandPerspective wins on treemap visualization for macOS; OmniDiskSweeper wins on list views for macOS. On price, Open source (GrandPerspective) vs Free (OmniDiskSweeper). 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 GrandPerspective or OmniDiskSweeper wins on price.