Guides
Mac storage, explained
Where your disk space goes, what's safe to delete, and how to get it back — with or without SpaceSweep.
How to free up space on your Mac: 10 safe ways
Ten safe ways to get gigabytes back, starting with the ones that take a minute.
What is “System Data” on a Mac, and how do you clear it?
What's really inside the grey bar in Storage settings, and which parts you can safely shrink.
How to delete Xcode DerivedData and other Xcode junk safely
DerivedData, simulators and device support files — what's safe to delete and how.
How to delete Mail and Messages attachments on a Mac
Where Apple Mail hides every attachment you've opened, and how to clear it safely.
Is it safe to delete cache files on a Mac?
Which caches and logs you can clear, which to leave alone, and the right way to do it.