Image File Size Checklist for SMS and MMS Messages

Updated January 14, 2026 · 7 min read

Run through this list before you upload. Picture messages on many carriers are limited in size, and oversized images may be shrunk heavily or fail to send.

Recommended settings for SMS and MMS messages

SettingStarting point
FormatJPEG (WebP where accepted)
Widthabout 1024 px on the long edge
Quality78
File size250 KB or less

These are practical defaults. If the platform or form you are using publishes its own limits, follow those instead.

Image File Size Checklist

Is it the right format? Photos should be JPEG or WebP. Is it the right width? Around 1024 pixels suits SMS and MMS messages. Is it under the limit? Aim for 250 KB or whatever the destination specifies.

Is it oriented correctly, cropped cleanly and free of private metadata? Our compressor handles orientation and strips metadata automatically when it re-encodes the image.

Step by step with TheCompressJPEG

  1. Open the compress JPEG to 200 KB tool, or the main compressor for custom settings.
  2. Drop in your image. Nothing is uploaded; it is processed in your browser.
  3. Set the maximum width to 1024 and the target size to 250 KB.
  4. Press Compress, check the result and download it.
Ready to try it? Compress your JPEG to 200 KB now. It's free and private.

Quick tips

  • Check the result on a phone, where most people will see it.
  • Use consistent dimensions for a set of related images.
  • Resize before you compress; it improves quality at any file size.
  • Write a size limit slightly below the stated maximum to leave a margin.

FAQ

How do I compress many images for e-learning courses at once?

Drop all of them into the tool together and use Download all to get a single ZIP.

What JPEG quality should I use for e-learning courses?

Quality around 78 keeps photos looking natural while cutting file size substantially.

Will compressing reduce image quality for e-learning courses?

Some detail is removed, but at sensible settings the difference is not visible at normal viewing size.

Wrapping up

For SMS and MMS messages, the reliable recipe is simple: resize to around 1024 pixels, compress at quality 78 or to a 250 KB target, and check the result before you upload. Keep the original so you can always start again.

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