Flatten a transparent image onto a solid colour. Upload your PNG, pick the background colour in the convert step, and download a JPG with no transparency.
Transparent areas are filled with the background colour you choose — white by default, or any hex code. The result is a JPG, which has no alpha channel, so the transparency is gone for good.
Only the see-through pixels change; everything else is preserved. Want to keep it a PNG but on a colour? Convert to JPG here, or re-export. Anonymous uploads are temporary and encrypted in transit.
Upload your PNG — it's pre-set to flatten onto a white background and output a JPG. Change the background colour in the convert step if you like.
Yes — set the Background to any hex code (e.g. #000000 for black) in the convert step.
JPEG has no transparency, so flattening to it guarantees the see-through areas are filled. You can pick BMP too; PNG/WebP keep an alpha channel.
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