At a glance
| Broom | Storage settings | |
|---|---|---|
| Shows space by category | ✓ | ✓ |
| Shows which folders are large | 8 views of every folder | — |
| Breaks down System Data | ✓ | — |
| App, dev tool and package manager caches | 260+ apps and tools | — |
| Xcode and developer files | ✓ | Some, under Developer |
| Duplicate finder | ✓ | — |
| Recoverable deletes | Trash with Put back | Varies by recommendation |
What Storage settings does well
Storing files in iCloud, emptying the Trash automatically and reviewing large documents are sensible defaults, and turning them on costs nothing. Start there.
The System Data problem
When the bar says 80 GB of System Data, macOS doesn't tell you what's in it. It's usually caches, logs, iPhone backups, simulators and local snapshots. Broom scans with Full Disk Access and shows the actual folders, then marks which ones are safe to clear.
Questions
Where is Storage on a Mac?
System Settings › General › Storage. Click the ⓘ next to a category for details.
Why can't I see what System Data is?
macOS groups everything that doesn't fit its other categories under System Data and doesn't list it. A disk analyzer shows the folders behind it.