macOS
How to Find and Delete Large Files on a Mac
Your Mac is filling up and you want to find the largest files quickly instead of guessing.
Why: macOS has a built-in Storage view that breaks usage down by category and lets you browse documents sorted by size, so you can delete or offload the biggest items without third-party tools.
Fix 1: Open the Storage view and its recommendations
- Choose Apple menu > System Settings > General > Storage (on macOS Monterey 12 or earlier: Apple menu > About This Mac > Storage > Manage).
- Let the colored bar finish calculating — it shows space by category (Applications, Documents, macOS, System Data, and so on).
- Work through the Recommendations at the top: Store in iCloud, Optimize Storage, Empty Trash Automatically, and Reduce Clutter.
Fix 2: Browse and delete the largest files
- In the Storage screen, click the i (info) button next to Documents.
- Open the Large Files tab to see your biggest documents, sorted by size.
- Select an item to preview it, then click Delete. Also check the Downloads and File Browser tabs for old installers and archives.
- Empty the Trash afterward (Control-click the Trash in the Dock > Empty Trash) — deleting only moves files to the Trash until then.
Fix 3: Offload media and remove unused apps
- Move large photo or video libraries to an external drive, or turn on Store in iCloud so originals live in iCloud and only thumbnails stay local.
- Delete music, movies, and podcasts you can stream or re-download.
- In the Storage view, open Applications, sort by Size, and remove apps you no longer use.
FAQ
What is “System Data” / “Other”? Caches, logs, and system files. Don’t delete it by hand — empty the Trash, restart, and let macOS manage it. See reclaim purgeable space.
Will deleting from Large Files remove it permanently? It goes to the Trash first. It’s only gone for good once you empty the Trash.