Split Image - On-device photo grid splitter
Split Image is a free browser tool that splits one photo into a private on-device grid. Open the official site, choose a local image, pick rows and columns, preview the tiles, and download them. Processing stays on the device so the file is not uploaded to a server. Typical uses include social-media carousels, puzzle-style posts, and print layouts. There is no account and no paid upgrade required to split an image.