Free Gmail size-search tool

Find the largest emails in Gmail.

Gmail won’t sort by size — but it can search by it. Pick a size, and we’ll build the exact search and open it in Gmail, ready to delete.

Step 1

Find emails larger than…

Start at 10 MB to catch the heavy hitters. Lower it later if you need to free more space.

Step 2 — Refine (optional)

Only emails older than

Typical long-lived inbox (~10 yrs)

roughly 180 emails are 10 MB or larger. Your real count will differ.

Step 3 — Open this search in Gmail

Gmail search

larger:10M -is:starred
Open in Gmail

In Gmail, click the select-all checkbox, then “Select all conversations that match this search,” and Delete. Deleted mail sits in Trash for 30 days — empty Trash to reclaim the space immediately.

Why a few emails eat most of your storage.

A plain text email is tiny — around 75 KB. But one email with a few photos or a PDF can be 5–25 MB, and a video attachment can top 50 MB. That means a handful of large emails often outweighs tens of thousands of newsletters. A few things worth knowing:

  • There’s no “sort by size” in Gmail. The larger: search operator is the real way to find big emails — e.g. larger:10M or larger:25M.
  • Add has:attachment to zero in on the heaviest culprits, and older_than:1y to skip recent mail you might still need.
  • Deletes don’t reclaim space until you empty Trash (and Spam). Both auto-purge after 30 days, or empty them manually from the sidebar.

Don’t hunt for big emails by hand.

Find them once here — or let MailSweeper keep them cleared for good.

One search, biggest win

Clearing a dozen large attachments can free more space than deleting thousands of promotional emails. Start big, then work down.

Catch them on the way in

MailSweeper can flag and clear heavy attachments automatically, so a few big senders never quietly fill your account again.

Skip the Google One upgrade

Most MailSweeper users free up enough space to stay on the free 15 GB tier instead of paying Google every month.

Common questions.

How do I find large emails in Gmail?
Gmail can't sort by size from the inbox, but its search can filter by it. Search `larger:10M` to find every email 10 MB or bigger. Add `has:attachment` to focus on attachments, or `older_than:1y` to limit to older mail. The tool above builds this query for you and opens it in Gmail in one click.
What is the Gmail search for emails over a certain size?
Use the `larger:` operator with a size and unit — for example `larger:25M` for emails over 25 MB, or `larger:500K` for over 500 KB. You can also use `size:` with raw bytes, but `larger:` with an M or K suffix is easier to read.
How do I delete large emails in Gmail?
Run a size search like `larger:10M has:attachment`, click the select-all checkbox, then choose "Select all conversations that match this search" and press the trash icon. Deleted mail moves to Trash for 30 days and still counts against your quota — empty Trash from the left sidebar to reclaim the space immediately.
Can I sort Gmail by size?
Gmail has no "sort by size" button, so the practical equivalent is a size search. Start with `larger:25M`, then step down to `larger:10M` and `larger:5M` to work through the biggest emails first. The tool above lets you switch thresholds without retyping anything.
Will this delete anything important?
The tool defaults to excluding starred emails (`-is:starred`) so anything you've flagged stays out of the results. Always review matches before deleting. Mail Sweeper goes further — it never touches starred, important, or primary inbox mail, and holds eligible emails in a Dustpan label for 7 days before permanent deletion.
Find & Delete Large Emails in Gmail — Free Search Tool | MailSweeper