Learn how to use DiskSpace to visualize your Mac storage, find the largest files and folders, and clean up safely without touching system files.
DiskSpace: Cleaner & Analyzer
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DiskSpace builds a sunburst-style map of your selected drive or folder. It measures the size of every file and directory you have access to, sorts them from largest to smallest, and lets you drill down to find exactly where your space is going.
No. DiskSpace is read-only by default. It scans and visualizes, but every deletion is initiated by you and confirmed before it happens. Files removed through the app are sent to the Trash so they can be recovered.
No. DiskSpace honors macOS file protections and respects System Integrity Protection (SIP). System and protected files are visible in the map but cannot be deleted from the app, so you cannot accidentally damage your installation.
Yes. Plug in any external SSD, HDD, USB stick, or SD card and DiskSpace will list it as a scannable target. Mounted SMB or AFP shares (NAS volumes) also appear as long as the share is mounted in Finder.
Apple's storage view groups items into broad categories like Documents, Apps, and Other. DiskSpace gives you the actual folder-by-folder breakdown, so you can see exactly which file is the 12 GB one - not just that "Documents" is taking 60 GB.
A first-time scan reads the metadata of every file on the drive. After that, results are cached and rescans are much faster. Network drives are slower than local SSDs because every directory listing is a separate request to the server.
For your home folder, no. To scan locations outside your user folder (like /Library or another user account), DiskSpace will ask for permission once via the standard macOS Files & Folders prompt. You can revoke this access any time in System Settings > Privacy & Security.
Visual disk space analyzer for macOS. Find what is eating storage and free it.
Get a clear visual map of your storage in under five minutes.
The Downloads folder is the most common source of wasted space. Here is a safe way to thin it out.
If you keep important downloads here, move them to a clearly named project folder first so they are not lost in future cleanups.
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