Flatten transparency

Composite a transparent PNG or WebP onto a solid background color.

The image stays in this browser. Nothing is uploaded or stored.

PNG, JPG, or WebP up to 25 MiB. Transparent pixels are composited onto the chosen color; output is a PNG with no alpha.

How to use

  1. Choose an image with transparency.
  2. Pick the background color.
  3. Download the flattened PNG.

What it supports

PNG/JPG/WebP up to 25 MiB and 40 MP; output is a PNG without alpha. JPEG inputs have no transparency to flatten — the tool still returns the composited image.

Related tools

Related guides