A disk usage visualizer for macOS. Scans a folder and renders it as an interactive sunburst — click to drill in, hover for details, ⌘-delete to trash.

Install

brew install --cask jeffreywardman/tap/halo

Requirements

• macOS 26 (Tahoe)
• Swift 6.2+ toolchain

Build & run

make run         # build and launch Halo
make run-helper  # build the privileged helper
make release     # release build
make test        # run the test suite

Or directly via SwiftPM:

swift run Halo
swift test

Shortcuts

Action	Shortcut
Open folder	⌘O
Open as admin	⇧⌘O
Rescan	⌘R
Cancel scan	⌘.
Go up	⌘↑
Reveal in Finder	⇧⌘R
Move to Trash	⌘⌫