How to Get a JPEG Under 300 KB for WhatsApp Sharing

Updated October 3, 2026 · 7 min read

Hitting an exact size limit is easier with a target-size compressor. Sharing a pre-compressed photo means you decide how it looks instead of letting the app re-encode it on its own terms.

Recommended settings for WhatsApp sharing

SettingStarting point
FormatJPEG (WebP where accepted)
Widthabout 1600 px on the long edge
Quality78
File size300 KB or less

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

How to Get a JPEG Under 300 KB

Type 300 into the target size box. The tool tries different quality levels and keeps the best one that fits. If even low quality cannot fit, it gradually reduces the dimensions until it does.

For very tight limits, crop first so the subject fills the frame. A tightly cropped image at 300 KB will look far better than a wide scene squeezed to the same size.

Step by step with TheCompressJPEG

  1. Open the compress JPEG to 300 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 1600 and the target size to 300 KB.
  4. Press Compress, check the result and download it.
Ready to try it? Compress your JPEG to 300 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

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.

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.

Wrapping up

For WhatsApp sharing, the reliable recipe is simple: resize to around 1600 pixels, compress at quality 78 or to a 300 KB target, and check the result before you upload. Keep the original so you can always start again.

Related guides