DiskSense for Mac

See what’s really using your disk.

DiskSense scans your Mac in seconds, explains every big folder in plain English, and shows exactly what’s safe to remove — and what isn’t.

Coming soon to the Mac App Store See how it works

Requires macOS 26 Tahoe or later.

5M filesscanned in about 35 seconds*

117locations explained

4clear safety ratings

0 bytesever leave your Mac

Explore

Your whole disk, at a glance.

A colour ring map shows every folder in proportion. Click to dive in, click the centre to come back out. A sorted list sits right beside it, and every size is the space actually used on disk — the same number du gives you, not an estimate.

Plain English

It knows what things are.

Xcode build caches. Docker and Colima disk images. Simulator runtimes. Leftover copies of Chrome. iCloud Drive. DiskSense recognises 117 common locations and tells you what each one is, how safe it is to remove, and the right way to get the space back — including the exact command when a tool should do it for you.

Safe to delete Clean with its own tool Review first Leave alone

Cleanup lens

Everything reclaimable glows.

Turn on the Cleanup lens and the map recolours by safety. What you can safely remove lights up green, and a legend adds it all up for the folder you’re in.

The ring map with the Cleanup lens on, colouring folders by how safe they are to remove, with totals for each rating

Disk overview

“System Data,” finally explained.

DiskSense splits your disk into the parts Apple’s Storage settings hide: macOS itself, boot and update files, swap, Recovery, your files and apps — and the space no scan can see, with the reason why.

The DiskSense overview breaking the disk into labelled parts with sizes, and totals of space that can be recovered

Advisor

Advice from Apple Intelligence. On your Mac.

After each scan, DiskSense asks the on-device model what to clean up first. Every suggestion is checked against your actual scan: sizes, safety ratings and instructions always come from DiskSense, and it will never suggest removing something that should be left alone. Nothing is sent anywhere.

The Advisor listing four clean-up actions with sizes, safety ratings and instructions

Thoughtful where it counts.

Fast

Reads folders in bulk on every core. Millions of files take seconds, not minutes.

Honest sizes

Counts hard links once and flags APFS clones, sparse files and iCloud-only files, so you know what removing them would really free.

Never touches the cloud

Scanning won’t make iCloud Drive, Dropbox or other cloud drives download anything.

Nothing deleted for good

Everything goes to the Trash first, and anything macOS or a sync service manages can’t be removed at all.

Siri and Shortcuts

“Scan my Mac with DiskSense.” “How much space can DiskSense free?” Built right in.

Reports for any AI chat

Copy a compact report of your scan to paste into Claude, ChatGPT or Codex for a second opinion — or save it as Markdown or JSON.

Private by design.

No accounts, no analytics, no tracking. DiskSense reads sizes on your Mac and keeps everything there. Read the privacy policy

DiskSense is coming to the Mac App Store.

Want to try it early? Email us and we’ll let you know.

Requires macOS 26 Tahoe or later, on Apple silicon or Intel. The Advisor requires a Mac with Apple Intelligence turned on.
*Measured scanning about 5.2 million files on a MacBook Pro with M1 Max.