Most online image tools follow the same pattern: upload an image; wait for a server to process it; download the result. That model works well. Cloud APIs are convenient, scalable from a developer experience point of view, and often give very consistent results. But while building an open-source background remover, I kept running into a different question: How far can image processing move into the browser itself? Not just the UI. Not just cropping or resizing. Actual AI-powered backgrou...