Remove Background by Color (Chroma Key)

No. The image is decoded and processed entirely in your browser. No pixels are ever sent to a server, so it works offline and keeps private artwork private.

Solid, flat backgrounds work best, like a logo or product shot on white, green, or a single brand color. It is a color knockout (chroma key), not AI subject detection, so busy or photographic backgrounds are not a good fit.

It widens how close a pixel has to be to your chosen color to count as background. Low values remove only the exact color; raise it to also catch anti-aliased edges, JPEG noise, and slight gradients. Too high and it starts eating into your subject.

JPEG compression and anti-aliasing blend the background into the edges, so those pixels are not the pure background color. Nudge the tolerance up to catch them, and prefer a PNG source over JPEG when you can.

Both keep transparency. PNG is the safest, most universally supported choice. WebP files are usually smaller at similar quality and are well supported in modern browsers and apps.