When books, worksheets, or exam papers are photographed with a regular camera and then shared or printed, the printed result often appears with a gray background layer across the page, making it harder to read. This tool is specifically designed to solve this problem. Using computer vision technology, it automatically replaces gray backgrounds with pure white, producing cleaner and clearer printouts. All processing is performed locally in your browser. Images are never uploaded to a server, ensuring your privacy and security. Regardless of whether the input image is in color or grayscale, the output image will always be black and white. This feature can also be used to extract clean line-art drawings from images.