Export accumulation
Repeated exports and review versions add up, but the final delivery and source project may both be needed.
Where the space goes
Linked assets
A small document may depend on a large asset folder elsewhere.
Cloud synchronization
Deleting a synchronized item can remove it from other devices; cloud-only size is not local SSD allocation.
A practical cleanup workflow
Scan the project drive
Use NullDisk’s radial or treemap view to locate large project folders, including external volumes.
Preview and trace dependencies
Use Quick Look where a preview provider exists. Open the owning design application to verify linked assets before removal.
Compare actual files
Similar names or equal sizes do not prove duplicates. NullDisk is not a content-based duplicate finder.
Archive and verify
Copy keepers to a backup, verify the copy, then review selected local items in the collector. Confirm cloud deletion effects separately.
Tools to compare
NullDisk offers native Mac maps, SSH/cloud sources, and development cleanup, plus a separate CLI. Match each tool’s platform and features to the job.
- DaisyDisk — Mac users who want a sunburst, cloud connections, and snapshot tools. Requirements: macOS
- Disk Graph — People who want saved storage history or a companion on iPhone/iPad. Requirements: macOS, iOS, iPadOS
- Disk Xray — Mac users seeking an analyzer plus duplicate and photo cleanup tools. Requirements: macOS 10.13+ (vendor requirements)
NullDisk features → · CLI and terminal workflows →
Common questions
Can NullDisk identify duplicate artwork?
It measures and visualizes storage but does not match file contents or similar images. Consider a documented duplicate or similar-photo tool when that is the specific job.
Can I preview every creative format?
Quick Look depends on the installed macOS preview providers. Open proprietary projects in their owning app if the preview is missing or incomplete.