Choose by workflow
A size-sorted column browser for finding and trashing large files. If you need something different, compare these five options by the job they do. Choose by platform, features, and how you prefer to review files.
Mac users managing local/remote storage, and developers who need Git-aware cleanup or scriptable disk reports.
Mac users seeking an analyzer plus duplicate and photo cleanup tools.
Mac users who want a focused list workflow and explicit confirmation.
Finder users who want to inspect archives before extracting or deleting them.
Mac users who want explained cleanup categories and developer-cache coverage.
Scroll across to compare
| Feature | OmniDiskSweeper | NullDisk |
|---|---|---|
| Best fit | Mac users who prefer a free size-sorted browser to a chart. | Mac users managing local/remote storage, and developers who need Git-aware cleanup or scriptable disk reports. |
| Visualization | Largest-first column browser | Radial map, treemap, and file list; CLI terminal treemap |
| Platforms and requirements | macOS | Mac app: macOS 14+; CLI: macOS, Linux, Windows |
| Pricing and editions | Free download from The Omni Group. | Direct Mac edition free with reminders; optional $9.99 one-time personal license or team seat removes reminders. App Store terms are separate. |
| Open source | No | No |
| Native macOS UI | Yes | Yes |
| Cleanup workflow | Open or Trash selected files from the size-sorted browser. | Review source and action: local Trash, explicit permanent removal, or backup/delete; remote and cloud actions depend on the destination. |
| Reports and portability | The official overview does not document report export. Keep important paths separately before rescanning in NullDisk. | CLI produces JSON/NDJSON scan reports. Third-party scan files are not directly imported into the Mac GUI. |
The official overview does not document report export. Keep important paths separately before rescanning in NullDisk.
Mac users who prefer a free size-sorted browser to a chart. Keep it if that matches your needs. Consider a change for a specific requirement such as a different chart, remote sources, report exports, or development cleanup.
GrandPerspective and SquirrelDisk offer free open-source analysis. OmniDiskSweeper is free on Mac. All direct Mac features in NullDisk are free with reminders; reminder removal is optional. Freeware does not necessarily mean open source.
No. Keep any historical exports you need and run a fresh scan of the same location. NullDisk does not import these apps’ saved scans or cleanup queues.