AI YOUTUBE THUMBNAILMAKER

YouTube recommends 1280x720 pixels (16:9 aspect ratio) with a minimum width of 640 pixels. Our AI generates thumbnails at this exact resolution for maximum quality and compatibility.

Thumbnails are the single biggest factor in CTR. YouTube's own data shows that 90% of top-performing videos use custom thumbnails. A compelling thumbnail can increase your CTR by 2-3x compared to auto-generated frames.

Top creators use bold text, expressive faces, bright contrasting colors, and simple compositions. Our AI is trained on these patterns — just describe what you want and it generates thumbnails that follow the same high-CTR principles.

Yes! YouTube now offers built-in A/B thumbnail testing. Generate multiple variations with Covershots, upload them as test options, and let YouTube's algorithm pick the winner based on real viewer data.

Short, bold text (3-5 words max) can boost CTR significantly. Use large fonts with high contrast. Avoid repeating your video title — the thumbnail text should add intrigue or emotion that complements the title.

Human faces with strong emotions (surprise, excitement, curiosity) trigger an instinctive response in viewers. Videos with face-based thumbnails consistently outperform faceless ones. Our AI can enhance your facial expressions for maximum impact.

Upload a photo or describe your concept. Our AI generates multiple thumbnail options using proven design principles — bold colors, clear focal points, and attention-grabbing compositions. Pick your favorite and download in full resolution.