NullDisk our pick
A native macOS disk-space analyzer with an interactive radial map. Native SwiftUI, allocated-size honesty with hard-link dedup, staged Trash-based removal, zero data collection — the complete package no rival matches end to end.
DaisyDisk
The sunburst gold standard — fluid, gorgeous, instantly legible.
Delve
Treemap plus sunburst in one honest, affordable package.
LumaDisk
A fresh modern sunburst with light-speed branding to match.
SquirrelDisk
The open-source sunburst that proves pretty can be free.
Disk Graph
Pies, treemaps, and snapshots for the chronically curious.
Klarity Disk
Treemaps and icicles with an offline privacy promise.
Il nostro metodo
We judged legibility at a glance (can a newcomer find the hog in 10 seconds?), drill-in feel, color stability across rescans, and accessibility (labels, contrast, reduced-motion support).
Domande frequenti
Which visualization is easiest to read?
Sunbursts for most people: the center-out metaphor matches how we think about folders. Treemaps pack more detail per pixel for experts.
Do visualizations slow down scanning?
No — rendering is trivial next to disk I/O. Any slowness you feel is the drive, not the drawing.
What makes NullDisk's map different?
Core Graphics rings sized by allocated usage, deterministic colors that don't reshuffle between scans, hover-to-highlight with click-to-drill — and a file list whose swatches match every wedge.