Head to head
| LumaDisk | SquirrelDisk | |
|---|---|---|
| Visualization | Sunburst | Sunburst |
| Platform | macOS + Windows | macOS + Windows + Linux |
| Pricing | Paid Paid one-time purchase (around $7 at time of writing) | Open source Free and open source (AGPL-3.0) |
| Open source | No | Yes |
| Native Mac | No | No |
Updated September 2026 · Prices change — please verify with the vendor.
LumaDisk
A light-speed sunburst that turns your filesystem into light.
＋ LumaDisk: Strengths
- Modern sunburst visualization on both Mac and Windows
- Fast scans with a clean, contemporary interface
- Affordable one-time price
－ LumaDisk: Weaknesses
- Cross-platform toolkit feel rather than fully native Mac UI
- Newer app with a shorter track record than incumbents
- Cleanup tooling is lighter than specialist cleaners
Read the review: LumaDisk → · LumaDisk See alternatives →
SquirrelDisk
The easiest open-source sunburst for hunting huge files.
＋ SquirrelDisk: Strengths
- Free and open source on every desktop OS
- Genuinely easy sunburst experience
- No account, no telemetry, no upsell
－ SquirrelDisk: Weaknesses
- Java-based UI rather than native Mac controls
- No collector tray or staged-removal workflow
- Solo-maintainer pace on features and fixes
Read the review: SquirrelDisk → · SquirrelDisk See alternatives →
Verdict: LumaDisk vs SquirrelDisk
Choose LumaDisk if you want sunburst visualization on macOS + Windows. Choose SquirrelDisk if you prefer sunburst views for free on macOS + Windows + Linux. 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, LumaDisk or SquirrelDisk?
LumaDisk wins on sunburst visualization for macOS + Windows; SquirrelDisk wins on sunburst views for macOS + Windows + Linux. On price, Paid (LumaDisk) vs Open source (SquirrelDisk). 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 LumaDisk or SquirrelDisk wins on price.