Best JPEG Quality Setting for Email Newsletters

Updated July 27, 2026 · 9 min read

Quality is the slider people touch first, yet it is often the least understood. Newsletter images load inside email clients, often on mobile data, so every kilobyte counts toward a fast open.

Recommended settings for email newsletters

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.

Best JPEG Quality Setting

JPEG quality is not a percentage of the original. It controls how aggressively fine detail is discarded. Between 90 and 100 the file grows quickly for almost no visible gain, while between 70 and 85 most photos look identical at normal viewing size.

For email newsletters, quality 70 is a good default. Drop toward 60 for small thumbnails or simple graphics, and stay nearer 85 for images people will zoom into.

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

  • Use WebP where it is supported and you control the page.
  • Never re-compress an already compressed JPEG if you can avoid it.
  • Strip metadata from images you share publicly.
  • Always keep the original file and compress a copy.

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 email newsletters, 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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