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Paste a YouTube Shorts URL or drag and drop any thumbnail image. We support all formats.
Our algorithm evaluates brightness, contrast, vibrancy, composition, and more in seconds.
Apply the targeted feedback to craft thumbnails that stop the scroll and drive clicks.
“I ran my latest Valorant thumbnail through the scorer and immediately saw the contrast was killing me. Fixed it, CTR jumped 2%.”
Alex R.
FPS creator · 12K subs
“The face detection tip was eye-opening. Added my reaction face to thumbnails and my Shorts started getting 40% more impressions.”
Mika T.
Minecraft builder · 8K subs
“Finally a tool that gives me real data instead of guessing. The composition score alone changed how I frame every thumbnail.”
Jordan K.
Variety streamer · 22K subs
Stop losing views to bad thumbnails. Score yours now — it's free and takes 5 seconds.