Retouchia is a free online AI image editor that lets users remove backgrounds, erase objects, upscale photos to 4K, restore old images, and colorize black-and-white photos. It requires no sign-up or account to get started and processes edits in roughly six seconds. The tool supports product photography, social media content, and personal photo restoration through a simple text-instruction interface. Retouchia automatically deletes uploaded images after one hour and generated images after seven days to protect user privacy.