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ScanMaster

PNG to JPG

Convert PNG to a smaller JPG on a white background.

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About PNG to JPG

Convert PNG to JPG and take most of the file size out of an image that has no transparency to protect — screenshots, exported charts, photos that arrived as PNG. Transparent areas are flattened onto white, which is what you want on a light page and the reason to check first if your background is dark.

Shrinking a heavy PNG export before it goes into a page or an email.

How to use PNG to JPG in 3 steps

  1. Drop the PNG files onto the drop area.
  2. Set Quality for the JPG — 85-92 is usually invisible against the original.
  3. Convert and download the smaller JPGs.

What you get with PNG to JPG

  • Typically a fifth of the file size for photographic content
  • Transparency composited onto a solid white background
  • Batch conversion for a folder of exports
  • Runs in your browser — the file is never uploaded
  • Free to use, with no signup and no account
  • No watermark or logo added to your output
  • Works on desktop and mobile, no install

PNG to JPG: questions

What happens to my transparent background?
JPG has no transparency, so the alpha is flattened onto white. If you need the cut-out to stay, keep PNG and compress it instead.
Is text still readable after conversion?
Small text and hard edges are where JPG shows its limits first. Preview at 100%; if the letters get fuzzy, raise the quality or use PNG.
How much smaller will it be?
For a screenshot or a photo, commonly 60-90% smaller. For an image of flat colour, sometimes barely anything — PNG already stores that efficiently.