Head to head
| Disk Xray | GrandPerspective | |
|---|---|---|
| Visualization | List | Treemap |
| Platform | macOS | macOS |
| Pricing | Freemium Free tier; Pro via yearly subscription or lifetime unlock | 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.
Disk Xray
All-in-one analyzer, duplicate finder, uninstaller, and shredder.
＋ Disk Xray: Strengths
- Bundles analyzer, duplicates, uninstaller, and shredder in one app
- Free tier covers basic scanning
- Guided cleanup suits users who want decisions made for them
－ Disk Xray: Weaknesses
- Subscription pricing for full features where rivals charge once
- Analyzer view is list-led rather than a rich visual map
- All-in-one scope means each tool is shallower than a specialist
Read the review: Disk Xray → · Disk Xray 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: Disk Xray vs GrandPerspective
Choose Disk Xray if you want list 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, Disk Xray or GrandPerspective?
Disk Xray wins on list visualization for macOS; GrandPerspective wins on treemap views for macOS. On price, Freemium (Disk Xray) 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 Disk Xray or GrandPerspective wins on price.