What is the email attachment size limit?
Gmail and Outlook cap attachments at roughly 20–25 MB total. Compressing photos first keeps you well under it.
Image compression
Compress Images for Email
Email providers cap attachments around 20–25 MB. Compress several photos at once so your message actually sends.
Open the Image CompressorWhat to expect
Five holiday photos attached18.0 MB
Same five at 200 KB each1000 KB
How to use
How to compress images for email
Email providers cap attachments around 20–25 MB. Compress several photos at once so your message actually sends.
- Add your photos. Drop in every image you want to email, batch is supported.
- Set a screen-friendly quality. Around 75–80% keeps photos crisp while cutting size sharply.
- Download all. Grab the whole batch as a single ZIP.
- Attach and send. Attach the compressed files, comfortably under the limit.
Sending photos by email
Gmail, Outlook, and most providers reject attachments over ~20–25 MB. A handful of phone photos can blow past that quickly, so compressing before you attach saves the bounce-back.
Add all the photos at once, set a moderate quality (75–80% keeps them looking great on screen), and download them together. Recipients get sharp images that open instantly instead of a failed send.
Frequently asked questions
Can I compress several images at once?
Yes. Add multiple photos, compress them together, and download them all in one ZIP.
Will quality drop noticeably?
At 75–80% quality, images look sharp on any screen while taking a fraction of the space.
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