Free macOS disk space analyzer
StorageScope helps Mac users find what is taking up disk space without uploading scan results, file names, paths, or hashes. It is an open-source SwiftUI/AppKit app for disk usage analysis, large folder scanning, stale file review, and cleanup planning.
How to find what's using disk space
- Pick folders to analyze (home folder or a volume); access is saved as a security-scoped bookmark for next launch.
- Run the scan — StorageScope ranks the largest folders, old large files, file types, caches, and duplicate candidates locally, with no scan data leaving your Mac.
- Drill in via the tree, inspector, and search to triage what's worth reclaiming before any cleanup action.
What it analyzes
- Largest folders and files
- Old large files that may be worth reviewing
- File type usage across scanned folders
- Caches, build artifacts, installers, archives, disk images, and temporary-looking files
- Duplicate candidates that can be verified before cleanup
Why local-first matters
StorageScope runs scans against folders the user grants through macOS folder selection or security-scoped bookmarks. The app is built for people who want a storage analyzer they can inspect, build, and run without sending private file metadata to a service.
Related StorageScope pages
Requires macOS 14 or later · verify with SHA-256 · all releases