Thumbnail AI is an AI tool focused on enhancing YouTube thumbnails to boost clicks and exposure. Developed by @ybouane in Montreal using low-code technology with Sktch.io, this web app evaluates thumbnails based on criteria like size, color, composition, and design elements. By providing predictive ratings, Thumbnail AI assists users in optimizing their thumbnails for maximum performance. It enables users to analyze existing thumbnails, make necessary adjustments, compare different thumbnails, and select the most effective one to increase click-through rates and exposure on YouTube. While the tool offers valuable insights and benefits, it is limited to YouTube and lacks detailed analytics and customization options.