Duplicate files · Duplicates basics
What does the Duplicates window in Storage Studio do?
Short answer: The Duplicates window finds files that are exact copies of each other, matched by content rather than name, and lets you keep one copy of each and remove the rest. It checks This Mac, iCloud Drive and your connected cloud accounts separately, and nothing is removed until you choose.
The Duplicates window finds files that are exact copies of each other — matched by their actual content, not just their name or size — and lets you keep one copy of each and remove the rest to reclaim the space. Nothing is removed until you choose, and removals on your Mac are recoverable.
It checks each place on its own: This Mac, iCloud Drive (files already downloaded), and each cloud account you've connected. Results are grouped into duplicate sets, largest space-saving first, and each set has a recommended copy to keep with a short note explaining why.
You'll find it in the More menu ••• → Duplicates, on the Duplicates card on Home, or by asking Tuhi to "find duplicate files". Full details are in the Duplicates manual page.