A calm Mac disk analyzer.
Aster Disk reads what's on your drive, shows it as a treemap (or sunburst, or bubble pack), and offers transparent cleanup suggestions you review one by one — before anything moves.
Download on the Mac App StoremacOS 12 Monterey or later · Universal binary (Apple Silicon + Intel).
What it does
Visualize
Mondrian treemap, sunburst, bubble pack, or quiet horizontal bars. Drill into any folder with a click.
Find big stuff
Old downloads, forgotten Xcode caches, stale iOS simulator runtimes, decade-old screenshots — eleven cleanup rules tuned for typical Mac usage.
Uninstall apps cleanly
Right-click any .app bundle to see every related cache, container, preference, log, and launch agent. Tick what to remove, click once.
Browse Installed Apps
Sortable list of every .app on your Mac with one-click uninstall.
Understand any folder
Right-click → What is this? for a plain-English explanation. Curated knowledge base, with optional on-device Apple Intelligence for the long tail.
See what changed
Re-scanning a folder shows the diff: top growers, total delta, per-path deltas.
Privacy by default
Aster Disk runs entirely on your Mac. No telemetry, no analytics, no crash reporting, no cloud sync, no user accounts, no email signup. Your scan results, settings, and trophy progress live on your computer and never leave it.
Read the full privacy policy →
Accessibility
Aster Disk was built to be navigated with VoiceOver, Voice Control, and the keyboard alone. Every macOS accessibility preference is respected — Reduce Motion, Reduce Transparency, Increased Contrast, Dynamic Type. The four chart layouts collapse to an ordered list of folders by size for VoiceOver, with named actions per item.
Read the accessibility statement →
Languages
English, French, German, Spanish, Italian, Japanese, Korean, Simplified Chinese, Brazilian Portuguese, Russian.