Open the .dmg
Double-click DiskGarden-0.1.0.dmg in your Downloads folder. A window with the app and an Applications shortcut appears.
Free for Mac. One .dmg, no installer wizard, no account. Drag it to Applications and you're scanning in under a minute.
Version 0.1.0macOS 15 or laterApple silicon
Double-click DiskGarden-0.1.0.dmg in your Downloads folder. A window with the app and an Applications shortcut appears.
Drop the DiskGarden icon onto the Applications folder, then eject the disk image. That's the whole install.
macOS asks once whether to open an app from the internet. To map hidden space too, allow DiskGarden under System Settings → Privacy & Security → Full Disk Access.
SHA-256
The support page has guides for Full Disk Access, external drives and the Waste bin — and a person to write to.