What happens to transparent pixels?

They are flattened onto the background color you choose (white by default) before JPG export.

Can I control JPEG quality?

Yes. Use the quality slider from 10% to 100%.

No. Files are decoded and encoded in your browser only.

JPEG is lossy. Lower quality settings increase compression artifacts, especially on sharp edges and text. Raise the quality slider before converting.

Yes. Transparent pixels composite onto the chosen background color before JPEG export because JPG cannot store an alpha channel.

Export a PNG to JPEG with a quality slider and a background color for transparent areas. Runs locally — nothing is uploaded.

PNG image

Drag and drop file here, or click to browse

Quality (90%)

Background color for transparency

Transparent PNG areas are flattened to this color before JPG export.

JPG output

Select an image to begin.

: They are flattened onto the background color you choose (white by default) before JPG export.
: Yes. Use the quality slider from 10% to 100%.
: No. Files are decoded and encoded in your browser only.
: JPEG is lossy. Lower quality settings increase compression artifacts, especially on sharp edges and text. Raise the quality slider before converting.
: Yes. Transparent pixels composite onto the chosen background color before JPEG export because JPG cannot store an alpha channel.