The Comprehensive Mac Storage Analyzer
macOS System Settings tells you that storage is full, but lumps gigabytes of vital data into an impenetrable "System Data" bar. DiskWarren decodes your entire APFS container into clear, actionable visual categories.
How macOS Organizes Storage (And Why It Gets Confusing)
On modern Macs running APFS (Apple File System), storage is shared across multiple volumes inside a single APFS Container. The sealed system snapshot resides on a cryptographically signed read-only volume, while user files, caches, and application support data reside on the Data volume.
Blocks macOS considers reclaimable when disk pressure rises, including local snapshots and expired caches.
Hidden user library directories requiring Full Disk Access permission to calculate actual disk footprints.
Uncommitted client repositories, build caches, and simulator runtimes that standard tools ignore.
Two Visual Paradigms in One Native App
Squarified Treemap Matrix
Visualize folder hierarchies as nested rectangles scaled to exact byte weight. Zoom into any subfolder to inspect dense caches or runaway log files in seconds.
macOS Partition Ring (Pie)
Inspect your overall APFS container balance at a glance: system sealed blocks, user documents, developer artifacts, local AI models, and available free space.
Safety by Design: Trash-First Recycling
DiskWarren recycles user-confirmed items to the native macOS Trash (~/.Trash) with full Put Back support. Critical system directories (/System, /usr, /bin) are guarded by permanent engine barriers.
Helpful Terminal Commands for Mac Storage
Ready to analyze your Mac storage?
Download DiskWarren for macOS. Free storage scanner, squarified treemaps, and zero cloud telemetry.