Privacy & safety · What leaves your Mac
Does my Storage Profile or file list leave my Mac?
Short answer: The profile is built and shown on your Mac. File names, locations and your working-set list never leave it; at most anonymous summary numbers like percentages and counts are reported, never names, paths or contents.
The Storage Profile is measured and shown on your Mac. The things that are personal — the list of files you've worked on, their names and locations, your folders, the biggest files — never leave it.
At most, anonymous summary-level numbers about how storage is spread (for example percentages and counts) may be reported to help improve the app. Those never include file names, folder names, paths or contents.
Open it from More ••• → Storage Profile. See Storage Profile for what each section shows.