Radix
Scans a volume and shows what is using it, as a navigable treemap.
What it does
Radix walks a volume and visualises usage so the largest consumers are immediately obvious, with drill-down into directories and deletion from within the app. It is the GUI answer to “the disk is full and Storage Settings says 60 GB of System Data”.
Notes
- Grant it Full Disk Access or it silently skips the directories most likely to hold the problem.
- APFS snapshots and local Time Machine backups frequently are the missing space, and no analyser can delete those —
tmutil listlocalsnapshots /andtmutil deletelocalsnapshotshandle them. ncdudoes the same job in a terminal, including over SSH.- Self-updating, so the Homebrew version lags.
Alternative to
| Alternative | Type | Trade-off |
|---|---|---|
| DaisyDisk | Paid | The paid classic, and still the nicest visualisation of the group |
| GrandPerspective | Open source | A plain treemap |
| OmniDiskSweeper | Paid | List-based, unglamorous and fast |
| ncdu or dust | Open source | The same job in a terminal, and it works over SSH |
Install
brew install --cask radix