How to Resize Images for Email (So They Send and Look Right)
Resize ImageResize to exact pixels, percent or a preset. Free, no sign-up.A phone photo is often 3–8 MB and 4000 pixels wide. Attach ten of them and the email is over the limit; attach one and the recipient still downloads far more than their screen can show. Resizing first fixes both.
Pick a size for the job
| What the photo is for | Width | Typical file size |
|---|---|---|
| Viewing on screen (most emails) | 1600 px | 200–500 KB |
| Quick look, many photos at once | 1024 px | 100–250 KB |
| The recipient will print it | Keep the original | Send a few at a time |
| An upload form with a size limit | Whatever the form asks | Use a target size |
The file sizes are typical for JPG photos at good quality; very detailed photos come out larger.
Resize and compress
- If your photos are iPhone HEIC files, convert them to JPG first with HEIC to JPG. Many email apps on Windows and some recipients cannot open HEIC.
- Open Resize Image, add the photos, choose Pixels and type the width (for example 1600). Keep the lock on so the height follows.
- For an exact file size, open Compress Image and turn on Target a file size (for example 500 KB). It finds the best quality that fits.
- Download them all as a .zip, or one by one.
Everything runs in your browser, so family photos and scanned documents stay on your device.
Format tips
- JPG for photos: smallest files and every email app opens them.
- PNG for screenshots and graphics with text. It keeps edges sharp, but photos as PNG are much larger.
- WebP is smaller still, but older email apps and some recipients cannot open it. Use JPG when in doubt.
When the email is still too big
Send fewer photos per email, or check the limits of your email service in how to compress a PDF for email. The same limits apply to images. For a whole album, share a link from the cloud storage you already use instead.
Keep the resized set in your workstand next to the trip or project, and the originals stay untouched wherever they are.