Strata

Strata is a native Mac app that maps your entire disk in under a minute, showing every folder's real size — including the ones Finder hides. The Space Map draws any drive or folder to scale, so you can see exactly where your storage went.

Why it makes the list

Most disk tools either visualize space or clean it up, not both — and the ones that do usually run background agents and ask for an account. Strata does both locally: Strata Pro uninstalls apps along with the caches, preferences, and support files they leave behind, clears logs and Xcode build data, and finds duplicates and large files, all without telemetry or a cloud connection. Everything it removes goes to the Trash first, so Put Back can undo a mistake.

Standout features

• Space Map renders any drive or folder to scale, including folders Finder hides
• Full-disk scan completes in under a minute
• Strata Pro uninstalls apps with their caches, preferences, and support files removed together
• Clears caches, logs, and Xcode build data
• Finds duplicate and large files
• Built-in monitor for CPU, memory, disk, battery, and network
• Everything removed goes to Trash first, so Put Back undoes any mistake

Pricing

Space Map and disk browsing are free. Strata Pro unlocks the uninstaller, cleanup tools, and duplicate finder for [add price/tier]. No account is required for either tier, and nothing is uploaded. Built in Swift, 41MB, for macOS 13 or later on Apple silicon and Intel.