Shipping CleanWhiteBG for a while now, and what sellers actually ask for is not "remove the background" - it is "make it pure white for the listing".

Lots of rejected marketplace photos fail on something small: off-white paper, a stray shadow, a faint gradient where the studio light fell off. So the tool returns a white JPG by default and a transparent PNG only when you need the cutout.

Things I got wrong early:

• Trying to be a photo editor. Sellers do not want layers, they want the file back and the listing approved.
• Ignoring hair and fur. That is where a single pass falls apart, so there are two modes now - one fast, one slower on edges.
• Forgetting batch. Most people upload 40 photos at once, not one.

Glad I delete uploads about two hours after processing. Nobody asked for storage, and it kills a whole class of "where are my photos" questions.

(My own product. Free for one image, no account: https://cleanwhitebg.com)