A complete technical walkthrough of every diagnostic engine inside XrayMac. Discover how our multi-threaded scanner visualizes disk hogs, purges runaway macOS System Data safely, and detects true duplicate files with cryptographic hashing.
1. Interactive Visual Sunburst & Treemaps
Scans 150,000+ files in under 3 seconds using parallel Grand Central Dispatch queues, rendering directory sizes into proportional zoomable sectors with Quick Look preview.
2. macOS System Data Diagnostic & Purger
Safely inspects ~/Library/Caches and abandoned application support folders, freeing 20GB-80GB of hidden caches while strictly respecting macOS System Integrity Protection (SIP).
3. Cloud Storage De-Ghosting
Uses NSFileManager.evictUbiquitousItem to offload local cached bytes of iCloud and Google Drive files while preserving files safely in the cloud.
4. SHA-256 Duplicate Detective
Employs a two-stage byte-length and cryptographic SHA-256 hash check to guarantee bit-for-bit duplicate accuracy without risking accidental deletion.
5. Developer Bloat Sweeper
One-click cleanup for Xcode DerivedData, iOS Simulator runtimes, Docker virtual disk caches, and orphan node_modules.
6. Trash-First Safety & Zero Telemetry
Non-destructive cleanups with full macOS Trash undo support and 100% on-device offline privacy.