Many websites still use PNG/JPG despite WebP's superior compression, because conversion tools are technical or require ongoing maintenance.
A SaaS that monitors a site's images and automatically serves WebP versions to supporting browsers, with fallbacks for older ones.
Small businesses and bloggers would pay for faster page loads without hiring developers.
MVP: A simple API endpoint that converts uploaded images to WebP with caching.
Risk: Browser support changes could make this obsolete if formats like AVIF take over.