Start with what's actually taking up space

Before you delete anything, find out what is consuming your storage. Open Finder, click Apple in the top left, then select About This Mac. Click the Storage tab to see a colored bar showing what is using your drive. The bar breaks down into categories: Apps, Documents, Photos, Mail, Backups, and Other.

Click on each category to drill down further. Photos and Mail often hold the most space on a MacBook that has been in use for years. Documents and Downloads folders frequently contain files you forgot about. The "Other" category can hide system caches and temporary files that accumulate over time.

This step tells you where to focus. If Photos is taking 200 GB and you have only 50 GB free, clearing photos will solve your problem. If Mail is the culprit, you know to look there first. Do not delete randomly — target the category that is actually full.

Key Takeaways

  • Check your Storage tab in About This Mac to see which category is using the most space before you start deleting anything.
  • Move large photo and video libraries to external drives or cloud storage instead of deleting them, so you keep the files but free up your MacBook.
  • Empty your Trash folder after deleting files, because deleted items stay on your drive until Trash is emptied.
  • Clear your Downloads folder and old email attachments regularly, as these accumulate quickly and are often duplicates you no longer need.
  • Use iCloud+ or a cloud service to store documents and photos, which keeps them accessible while removing them from your local drive.

Move photos and videos to external storage or cloud services

Photos and videos are the fastest way to fill a MacBook. If your Photos library is large, moving it off your drive is more practical than deleting it. You have two main routes: an external hard drive or a cloud service like iCloud+, Google Photos, or Amazon Photos.

For an external drive, plug in the drive, open Finder, and drag your Photos library to the external drive. The Photos library lives in Users > [Your Name] > Pictures > Photos Library.photoslibrary. Once the copy finishes and you confirm the files are on the external drive, you can delete the original from your MacBook. Keep the external drive plugged in when you want to view or edit those photos, or leave it unplugged and access them only when needed.

For cloud storage, iCloud+ (Apple's paid tier, starting at $2.99 per month for 200 GB) lets you keep your full library in iCloud and read only the photos you use frequently to your MacBook. Google Photos offers unlimited storage for compressed photos, or Amazon Photos gives unlimited original-quality storage if you have Amazon Prime. These services keep your photos accessible from any device without taking up local space.

Clear your Downloads and Documents folders

Your Downloads folder is a catch-all for installers, PDFs, images, and files you downloaded once and never thought about again. Open Finder, click Downloads in the sidebar, and sort by date modified. Files at the bottom have not been touched in months or years. Select old files and drag them to Trash, or move them to an external drive if you might need them later.

Check your Documents folder the same way. Look for old project folders, duplicate files, or archives you created years ago. If you have multiple versions of the same document (like "Resume_Final.docx", "Resume_Final_v2.docx", "Resume_FINAL_ACTUAL.docx"), keep only the most recent and delete the rest.

These folders often hold gigabytes of files you genuinely do not need. Clearing them takes an hour and usually frees up 10 to 50 GB depending on how long your MacBook has been in use.

Delete old email and attachments

Mail stores messages and attachments on your drive. If you have years of email, this adds up quickly. Open Mail, click Mailbox in the menu bar, then select Erase Deleted Items > All Accounts. This empties your Trash folder within Mail itself, which is separate from your computer's Trash.

For attachments, Mail has a built-in tool. Click Mail in the menu bar, then Preferences. Go to the General tab and look for options related to attachment storage. You can also manually search for large attachments by clicking File > Search and filtering by size. Delete attachments you have already saved elsewhere, or move them to cloud storage.

If you use Gmail or another web-based email, you can delete messages directly from the web interface, which does not take up space on your MacBook. Consider switching to web-based email if Mail is consistently your largest storage consumer.

Remove unused applications and language files

Applications you no longer use take up space. Open Finder, click Applications in the sidebar, and look for programs you have not opened in months. Drag unused apps to Trash. Some large applications (like Final Cut Pro, Logic Pro, or Adobe Creative Suite) can free up 10 to 50 GB each.

When you delete an app by dragging it to Trash, the app itself is removed but some associated files may remain. For a cleaner removal, use a free tool like AppCleaner, which finds and deletes the app plus its supporting files in one step. read AppCleaner from its website, drag an app onto the AppCleaner window, and click Remove.

MacBooks also store language files for every language the system supports. If you use only English, you can remove language packs for other languages. This requires a third-party tool like CleanMyMac X or Monodraw, and the space savings are usually 1 to 5 GB. This step is optional and more technical than the others.

Empty your Trash and verify the space is freed

Deleting files moves them to Trash, but they stay on your drive until you empty Trash. Right-click the Trash icon in your Dock and select Empty Trash. On newer MacBooks with Apple Silicon, this happens automatically after 30 days, but emptying manually frees space when ready.

After emptying Trash, go back to About This Mac > Storage to confirm your free space has increased. The bar should show more gray (available space) than before. If the change is smaller than you expected, you may have missed a large folder or the system is using more space than the Storage tab shows.

If you still need more space after these steps, consider upgrading to an external drive for long-term storage or subscribing to iCloud+ to move documents and photos to the cloud. Most MacBooks with 256 GB of storage can run smoothly with 20 to 30 GB free; if you drop below 10 GB, performance may slow.

Prevent your drive from filling up again

Once you have cleared space, keep it clear by building habits. Empty your Downloads folder once a month. Archive old email every few months. Move large video projects to external storage as soon as they are finished. Set up iCloud+ or another cloud service to automatically back up new photos and documents.

MacBooks with automatic iCloud sync enabled will upload new files to the cloud as you create them, which keeps your local drive from filling up again. Check your iCloud settings by clicking the Apple menu, then System Settings > iCloud, and enable iCloud Drive if it is not already on.

Frequently Asked Questions

Is it safe to delete files from the Other category?

Some files in Other are safe to delete (caches, temporary files, old downloads), but some are system files your MacBook needs. Do not delete anything in Other unless you know what it is. Use a tool like Disk Diag or CleanMyMac X to identify what is in Other before you delete it.

What happens if I move my Photos library to an external drive?

Your photos stay accessible through the Photos app as long as the external drive is connected. If you disconnect the drive, you cannot view or edit those photos until you plug it back in. Keep the drive in a safe place and back it up separately if the photos are important.

Can I recover files after I empty Trash?

Once you empty Trash, recovery is difficult but sometimes possible with data recovery software like DiskWarrior or Data Rescue. Prevention is easier than recovery, so double-check that you do not need a file before emptying Trash.

How much free space should I keep on my MacBook?

Apple recommends keeping at least 15 to 20 percent of your drive free for system operations and temporary files. On a 256 GB drive, that means keeping 40 to 50 GB free. If you drop below 10 GB, your MacBook may slow down or refuse to install updates.

Does clearing my drive improve MacBook performance?

Freeing up space helps if your drive was nearly full, because a full drive slows down read and write speeds. If you have plenty of free space already, clearing more will not noticeably speed up your MacBook. Performance gains come mainly from having at least 15 to 20 percent free space available.