When images are split automatically, for example with the LINE Stamp Cutter, part of a neighboring illustration or small specks can end up in the result. This tool lets you box unwanted areas and make them transparent, or keep only the area you need. After erasing, you can trim transparent margins or re-center the image at LINE stamp size (370×320) in one click. Everything runs in your browser with the Canvas API, and no image is ever sent to a server.
Related tools: LINE Stamp Cutter