How to Free Up Storage on Mac

You can free up storage on a Mac by removing large files, unnecessary downloads, application caches and apps you no longer use. Start with the built-in storage overview, then dig deeper where the space actually went.

1. Check What Is Using Your Storage

Open System Settings → General → Storage. macOS shows a colored bar with categories like Applications, Documents and System Data. Wait for it to finish calculating — the first numbers are often wrong.

2. Find and Remove Large Files

Large files are the fastest win. Sort your Downloads folder by size, check ~/Movies and ~/Desktop, and look for old disk images (.dmg) and archives you already extracted. Our guide to finding large files on Mac covers this in detail.

3. Delete Unused Applications

Apps you haven’t opened in months still occupy space — sometimes several gigabytes each. Dragging an app to the Trash removes the app itself, but often leaves support files behind. A dedicated uninstaller or Mac cleaner removes both.

4. Clear Caches and Junk Files

System and app caches live in ~/Library/Caches. Most are safe to remove, and macOS rebuilds what it needs — see the step-by-step guide to cleaning Mac cache. Be careful deleting files by hand — a cleaner that previews what it removes is the safer route. Much of what macOS reports as System Data is exactly these caches and support files.

5. Empty the Trash and Downloads

Deleted files still occupy space until you empty the Trash. Downloads is the most common junk drawer on any Mac — review it monthly.

6. Analyze Storage With a Mac Utility

Built-in tools show broad categories, but not which specific folders grew. Storage analyzers such as Neatwise scan your disk and visualize exactly where the space went, so cleanup becomes a quick review instead of a treasure hunt.