PNG to JPG with white background — free online tool

Flatten a transparent PNG onto white and save it as JPG. Semi-transparent edges blend into white, which suits product photos and signatures.

Convert images

Choose one output format for every selected image.

What to know

This page is for the specific case of a PNG whose background is transparent: a product cut-out, a signature, a logo, a sticker. JPG has no alpha channel, so the conversion has to decide what lies behind each transparent pixel, and here the answer is always pure white.

The flattening is plain alpha blending against white. A fully transparent pixel becomes white, a fully opaque pixel keeps its color, and a semi-transparent pixel lands in between. A black pixel at 50 percent opacity mixes with white to give a mid gray of about 128, which is why a soft shadow turns into a smooth gray gradient instead of vanishing. Anti-aliased edges, which are semi-transparent by design, blend cleanly into the white, so cut-outs do not show a ragged outline.

White is the only background offered. If your page is dark or colored, a white-backed JPG will show as a box, and the better choices are to keep the PNG or to flatten onto your own color in a design tool. White suits marketplace listings, printed forms, e-commerce thumbnails and any page with a white background.

A signature scanned as a PNG with a transparent surround is a typical example, and converting it produces a JPG that can be dropped onto a white document. Output is JPG at quality 92 with the original dimensions, and up to 12 files can be flattened in one batch.

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How to use PNG to JPG with white background — free online tool
  1. Drop the transparent PNG files into the page; the output is locked to JPG with a white background.
  2. Run the conversion and look at the preview of each result.
  3. Download the JPGs and place them on a white page to check that the edges blend in.
  4. If you need a color other than white, keep the PNG and place it on that color in a design tool.

Quick answers

Can I choose a color other than white for the background?

No. This converter always flattens onto white. For another color, place the original PNG over that color in a design or layout program.

What happens to a soft shadow in my PNG?

It is blended with white according to its opacity, so a shadow of 50 percent black becomes a mid gray rather than disappearing.

Will the edges of my cut-out look jagged?

Anti-aliased edges are semi-transparent pixels, and they blend smoothly into white. A faint light fringe can appear if the PNG was cut out against a different colored background.

Why not just keep the PNG?

Some upload forms, marketplaces and print workflows accept only JPG. The white-backed JPG is accepted there and is usually much smaller than the PNG.