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Compress Image for Email

Make photos small enough to attach to an email. Resize and compress a batch and send them as a ZIP or as separate files.

Drop images here, click to choose, or paste
JPG, PNG, WebP, AVIF, HEIC, GIF, BMP. Up to 100 files. Stays in your browser.

Everything runs in your browser. Your images are not sent to our server. Sizes are shown with 1 KB = 1,000 bytes.

Compress Image for Email

Most mail providers limit a message to about 20 to 25 MB, and attachments grow by roughly a third when they are encoded for sending. Ten phone photos of 4 MB can already be too much. The preset here is JPG, quality 75, 1,600 pixels on the long side: plenty for viewing on a screen and about 300 to 500 KB per photo.

Settings this page uses

  • Output: JPG.
  • Quality: 75.
  • Max size: 1,600 pixels on either side.

You can change any setting above the results.

Checklist before you upload

  • Count the total: 20 photos at 400 KB are about 8 MB, which is fine.
  • For printing, send the original or a link to a shared folder instead.
  • Use the ZIP download to attach many images as one file.
  • Tell the receiver if the images are reduced and not suited for printing.

If something goes wrong

If the mail still bounces, lower the Max width to 1,200, or set a target such as 300 KB. If the recipient needs full quality, use a file sharing link instead of an attachment.

Other sizes and purposes

Sizes: 20 KB, 50 KB, 75 KB, 100 KB, 150 KB, 200 KB, 250 KB, 300 KB, 400 KB, 500 KB, 750 KB, 1 MB, 2 MB, 3 MB, 5 MB.

Purposes: Passport photo, Visa photo, Job application, Exam photo, ID photo, Website, WordPress, Ecommerce. See also the image compression guide.

Frequently asked questions

How big can an email attachment be?

Most providers allow about 20 to 25 MB per message in total, and encoding adds around a third.

Should I send images as a ZIP?

A ZIP of JPG files does not make them smaller, but it keeps many files tidy as one attachment.

Will the pictures be good enough to print?

For small prints yes. For large prints send the original.