DriveMosaic

See what's eating your disk. DriveMosaic scans any drive or folder and paints every file as a treemap — blocks sized by the space they take. The 80 GB of forgotten screen recordings, the node_modules graveyard, the Docker images from 2024: they're all right there, biggest first.

Built for speed. DriveMosaic scans with the BSD fts API rather than high-level file enumeration — 100,000+ files per second, with real-time progress as it runs.

Drill-down navigation — click any block to zoom into that folder Sidebar + detail panel — largest items surfaced automatically Cmd+click to Finder — jump straight to any file No sandbox limits — sees your whole disk, not the App Store-approved subset Private by design. Your file data never leaves your Mac. No accounts, no telemetry, no cloud. Signed and notarized with a Developer ID.

Free to use. Scanning, visualization, and navigation are all free. DriveMosaic Pro ($4.99, one-time — no subscription) adds drag-to-delete: queue up the junk and send it to the Trash without leaving the app.

Made by Black Cloud LLC, an independent one-person software studio.