How to Compress JPEG for Blog Post Images

Updated September 8, 2026 · 6 min read

Getting a JPEG ready for blog post images is mostly about two numbers: pixel width and file size. Articles often carry several images, and each extra megabyte delays the moment a reader can start scrolling.

Recommended settings for blog post images

SettingStarting point
FormatJPEG (WebP where accepted)
Widthabout 1200 px on the long edge
Quality70
File size150 KB or less

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

How to Compress JPEG

Start by resizing. A photo straight from a phone is often 4000 pixels wide, while blog post images rarely benefits from more than about 1200 pixels. Halving the width cuts the pixel count to a quarter, which shrinks the file far more than any quality slider.

Then set quality. For blog post images, a quality around 70 keeps edges and skin tones natural while removing detail your eye will not miss. If you have a hard cap, type it into the target size box and let the compressor search for the highest quality that fits under 150 KB.

Step by step with TheCompressJPEG

  1. Open the compress JPEG to 150 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 1200 and the target size to 150 KB.
  4. Press Compress, check the result and download it.
Ready to try it? Compress your JPEG to 150 KB now. It's free and private.

Quick tips

  • Always keep the original file and compress a copy.
  • Use JPEG for photos and PNG for logos and line art.
  • Name files descriptively with lowercase words and hyphens.
  • Check the result on a phone, where most people will see it.

FAQ

Can I compress images for e-learning courses without uploading them?

Yes. TheCompressJPEG runs entirely in your browser, so your images never leave your device.

Is WebP accepted for e-learning courses?

It depends on the platform. JPEG is the safest choice when you are not sure.

What size should an image be for e-learning courses?

A practical default is about 1600 pixels wide and 200 KB or less, unless the destination states its own limits.

Wrapping up

For blog post images, the reliable recipe is simple: resize to around 1200 pixels, compress at quality 70 or to a 150 KB target, and check the result before you upload. Keep the original so you can always start again.

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