Images & photos
Flat-colour background cutout
Make pixels near a chosen background colour transparent.
A clear answer. Here’s how.
Makes a pixel fully transparent when every RGB channel is within the selected 0–255 difference of the key colour. Applies globally, including enclosed regions; this is a hard colour key, not AI subject segmentation or edge decontamination. Other pixel colours/alpha remain unchanged. Transparent PNG output can have hard or fringed edges. Supports PNG/JPEG/WebP up to 10 MB and 4 million decoded pixels per file. Browser decoding and single-frame PNG re-encoding remove source metadata/colour profiles; no files leave this device.