Head to head
| DaisyDisk | GrandPerspective | |
|---|---|---|
| Visualization | Sunburst | Treemap |
| Platform | macOS | macOS |
| Pricing | Paid Paid one-time license (around $10 at time of writing) | Open source Free and open source (GPL); small App Store fee for the packaged build |
| Open source | No | Yes |
| Native Mac | Yes | Yes |
Updated September 2026 · Prices change — please verify with the vendor.
DaisyDisk
The beloved sunburst map that made disk cleanup beautiful.
＋ DaisyDisk: Strengths
- Gorgeous, instantly readable sunburst map with smooth drill-in
- Fast scanning with a built-in collector for staged deletion
- Long-running Mac citizen with polished onboarding
－ DaisyDisk: Weaknesses
- Paid license; no free or open-source tier
- macOS only, so mixed-OS households need a second tool
- Collector workflow is manual — no duplicate detection or AI assistance
Read the review: DaisyDisk → · DaisyDisk See alternatives →
GrandPerspective
The tiny open-source treemap that shows your biggest files instantly.
＋ GrandPerspective: Strengths
- 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: Weaknesses
- 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
Read the review: GrandPerspective → · GrandPerspective See alternatives →
Verdict: DaisyDisk vs GrandPerspective
Choose DaisyDisk if you want sunburst 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.
Frequently asked questions
Which is better, DaisyDisk or GrandPerspective?
DaisyDisk wins on sunburst visualization for macOS; GrandPerspective wins on treemap views for macOS. On price, Paid (DaisyDisk) 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 DaisyDisk or GrandPerspective wins on price.