GrandPerspective
GrandPerspective is a macOS disk usage visualizer that helps you find large files and folders by showing storage as an interactive treemap.
What is GrandPerspective?
GrandPerspective is a macOS utility for understanding how disk space is being used on your Mac. It scans a selected folder, drive, or volume and presents the results as a treemap, where larger rectangles represent larger files. This makes it easy to spot storage hogs, inspect deeply nested folders, and understand why a disk is filling up without manually browsing through the Finder. The app is useful for routine storage cleanup, checking external drives, and investigating unexpectedly large backups, media libraries, or project folders. It is designed as a focused desktop tool rather than a cloud service, so its main workflow is local file-system analysis on macOS. GrandPerspective is published by Erwin Bonsma.
Key features
- Scan folders, disks, and volumes to measure space usage
- Visualize storage with a treemap sized by file size
- Identify the largest files and folders at a glance
- Drill down into nested directories to inspect where space is used
- Filter and refine views to focus on specific file groups
- Open or reveal selected files and folders for follow-up cleanup
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Safe
GrandPerspective is a legitimate disk analysis utility for macOS. Its file access is consistent with its purpose: it needs to read folder contents and file sizes in locations you choose to scan. Review scan targets before granting access to sensitive folders, but ordinary use does not require unusual privileges or background services.
Recommendation: Keep GrandPerspective if you use it to investigate low disk space or manage large files on your Mac. If you no longer use storage visualization tools, you can remove the app without affecting macOS beyond losing its scanning and treemap views.
Common paths
/Applications/GrandPerspective.app
Preference paths
~/Library/Preferences/net.sourceforge.grandperspectiv.plist
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