A local-first Mac storage cleaner for answering the question that matters: what can you safely review next? Disker shows what is using space, what grew recently, and what should stay protected before anything moves to the Trash.
Compare scans of the same folder and see the biggest recent increases instead of guessing why your disk is full.
Action Deck groups safe wins, large personal files, cloud copies, and permission gaps so you can move quickly without losing context.
System areas, app data, Photos libraries, Mail data, and sensitive Library folders stay out of casual cleanup.
Disker scans the folders you choose on your Mac. File names, file contents, folder paths, and scan results are not uploaded. Cleanup moves selected items to the macOS Trash and never performs permanent deletion.