Roomy is a free, open-source Mac app that shows what's filling your disk and helps you clean it up safely.

- Your disk as a floor plan: every folder is a room sized by the space it takes. Click to walk in.

- One-click cleanup of caches, logs, build files and old installers, with Undo.

- Nothing is deleted until you review it, and every folder says if it's safe to remove.

- Forecast tells you when your disk will be full, and shows what grew this week.

- Notch overview: point at the notch for free space, CPU, memory and battery. Drop a file on it to measure it.

- Keep Awake, even with the lid closed.

- Private: runs on your Mac. No account, no tracking.