Every tool is free, unlimited and works without uploading a single file. Why we built it this way →
How-to GuideHit an exact file size≈ 1 minute · no install

How to Shrink a Photo for Email

A single phone photo can be 5 MB, and eight of them blow past Gmail’s 25 MB limit before you have even said hello. The fix is shrinking both pixels and weight to something a recipient’s inbox is happy to carry.

The short version

Follow the steps below with the free Reduce Image Size tool — it runs entirely in your browser, needs no upload, account or watermark, and finishes in about a minute.

Step by step

1
Downscale to screen size

Around 1200–1600 px is plenty for an email photo nobody will print.

2
Compress to a light JPG

Target 150–250 KB per image — sharp on screen, tiny on the wire.

3
Batch the whole set

Load up to 30 photos, apply once, download the ZIP.

4
Attach and send

A dozen shrunk photos now sit comfortably under the limit.

Open the Reduce Image Size toolFree · unlimited · runs in your browser

Pro tips & common mistakes

  • Under ~5 MB total keeps threaded replies from bloating for everyone.
  • Gmail also lets you "light" inline images — but pre-shrinking keeps quality under your control.
  • Name files simply; long camera names add nothing and confuse recipients.

The exact requirement

Need the precise numbers? This task pairs with our full spec sheet: Gmail Attachment Image Size.

Related guides

How to Make an Image a Gmail Attachment (Size Rules)How-to guideHow to Reduce Image Size to 200 KBHow-to guideHow to Batch Compress Images (Many at Once)How-to guide

Frequently asked questions

How big can a Gmail attachment be?
25 MB total across all attachments; beyond that Gmail inserts a Drive link.
What size should email photos be?
Roughly 1200–1600 px and 150–250 KB each is a friendly default.
Does resizing reduce quality noticeably?
Not at email viewing sizes — the recipient will not see the difference.