Compare two YouTube thumbnail images for free. Pick the winner using brightness, contrast, face, color, and readability scores.
When you are torn between two thumbnails, this makes the call easier. It puts the images side by side and checks brightness, contrast, face, color, and readability to tell you which one stands out more.
It helps right before you publish, when you want to know which cover will catch eyes in the feed. You start from a real comparison instead of a guess.
The free version compares technical CTR signals: brightness, contrast, saturation, face count, resolution, aspect ratio, and text-density proxy. It does not call a vision LLM.
Use Pro when two thumbnails are technically close and you need semantic judgment: emotion, curiosity gap, visual story, and niche-specific psychology.