How I built a free browser-based watermark...

I recently built CleanMark — a free, browser-based watermark removal tool that runs entirely in your browser with no uploads, no registration, and no cost. Try it here: https://cleanmark.org ## The core idea Most watermark removers send your image to a server. CleanMark does everything locally using the browser's Canvas API — your image never leaves your device. ## How Canvas inpainting works The technique is called inpainting — filling in a selected region based on surrounding pixels. Here's th