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Gmail storage full? How to free up space fast

· 8 min read

The warning appears at the top of your inbox: "You're running out of storage." Or worse, you find out from a friend whose email bounced back to them. Gmail storage fills up quietly for years, then suddenly becomes urgent.

The good news is that most people can free several gigabytes in under half an hour, without deleting a single email they actually care about. The trick is knowing where the space is really going.

Why it matters more than you think

When your Google storage is full:

  • You stop receiving email. People who write to you get a bounce message saying your mailbox is full. You may never know what you missed, including verification codes and replies to job applications.
  • You can't send email.
  • Google Photos stops backing up your phone.
  • You can't upload or save new files to Google Drive.

And if an account stays over its limit for two years, Google's policy allows it to delete content. So it's worth fixing properly.

Step 1: Find out what's actually full

The biggest surprise for most people: Gmail probably isn't the problem. Free Google accounts get 15 GB of storage, shared between Gmail, Google Drive and Google Photos. Photos and videos backed up from your phone are usually the biggest users by far.

Go to one.google.com/storage (or open the Google One app) to see the split. You'll see a bar showing how much each service uses. Start with whichever is largest.

Step 2: Clean up Gmail with search

Gmail's search box understands special commands that find the heaviest emails in seconds. Type these into the search bar at the top:

Find emails with big attachments

has:attachment larger:10M

This shows every email bigger than 10 MB. Start here, then try larger:5M. A few dozen old emails with videos, presentations or scanned documents can add up to gigabytes. Save any attachments you want to keep, then delete the emails.

Find old promotions and social notifications

category:promotions older_than:1y
category:social older_than:1y

Years of newsletters and notifications are rarely worth keeping. Select all (use the checkbox, then "Select all conversations that match this search") and delete.

Find emails from one noisy sender

from:newsletter@example-shop.com

Replace the address with any sender who emails you constantly. Delete the lot, then unsubscribe so they don't come back.

Combine commands

has:attachment larger:2M older_than:3y -is:starred

This finds attachments over 2 MB, older than three years, that you haven't starred. The minus sign excludes things.

Empty Trash and Spam

Deleted emails still count toward your storage until they leave Trash (automatically after 30 days). To free the space immediately, open Trash and click Empty Trash now, then do the same in Spam. Check first that nothing important is in there.

Step 3: Clean up Google Drive

Go to drive.google.com/drive/quota. This lists every file sorted by size, largest first. Look for:

  • old videos and large exports you've already saved elsewhere;
  • duplicate copies of the same folders;
  • old phone backups, including WhatsApp chat backups on Android, which now count toward your Google storage and can be several gigabytes. You can manage them in WhatsApp under Settings → Chats → Chat backup, for example by excluding videos.

Deleted Drive files also go to a bin that counts toward storage. Empty it afterwards.

Step 4: Clean up Google Photos

  • Google One's Clean up space tool suggests blurry photos, screenshots and large videos to review.
  • Search for Videos in Google Photos. A few long 4K videos can use more space than thousands of photos.
  • Consider changing the backup quality to Storage saver, which stores new photos at slightly reduced quality that's fine for most people.
  • Empty the Photos Bin when you're done.

Before deleting photos, make sure you have a copy elsewhere if they matter. Deleting from Google Photos usually deletes from all your synced devices too.

Step 5: Stop it filling up again

  • Unsubscribe as you go. Every newsletter you don't read costs space every week, forever.
  • Create a filter that automatically deletes or archives messages from noisy senders.
  • Share links instead of attachments. Sending a Drive link doesn't duplicate a large file into every recipient's mailbox and your Sent folder.
  • Use a temporary email for one-time sign-ups. Coupons, downloads and trials fill mailboxes with marketing for years. A disposable address takes that mail for you, then deletes itself.
  • Set a reminder to repeat the search cleanup once or twice a year.

Should you pay for more storage?

If you've cleaned up and are still near the limit, a Google One plan with more storage is the easy answer, and it's inexpensive for the smallest tier. It makes most sense if your photos are the main thing filling space, since those are memories you want to keep rather than clutter.

If your storage is mostly old newsletters and attachments you'll never open again, cleaning up is free, and paying would just postpone the same problem.

The 15-minute version

  1. Check one.google.com/storage to see which service is biggest.
  2. In Gmail, search larger:10M and delete what you don't need.
  3. Delete old promotions with category:promotions older_than:1y.
  4. Check the largest files at drive.google.com/drive/quota.
  5. Empty Trash in Gmail, Drive and Photos.

For more ways to cut down the mail that fills your inbox in the first place, see How to stop spam emails.