ThumbScore
ChromeliveRate your thumbnail's click potential
About
Analyze YouTube thumbnails for click-through potential using canvas-based image analysis. Scores contrast, color saturation, text presence, and composition to help you make thumbnails that get clicks.
Features
- +Thumbnail score based on 8 visual criteria
- +Contrast, color, and composition analysis
- +Actionable improvement suggestions
- +Hover scores on search result thumbnails
Pricing
Frequently Asked Questions
What does ThumbScore do?
ThumbScore analyzes YouTube thumbnails for click-through potential using canvas-based image analysis. It scores contrast, color saturation, text presence, face detection, and composition, then gives specific tips to improve your thumbnails.
Is ThumbScore free?
ThumbScore has a free tier with 5 thumbnail analyses per day. Starter ($4.99/mo) and Pro ($9.99/mo) unlock unlimited analyses, batch scoring, A/B comparison tools, and historical tracking with a 14-day free trial.
Does ThumbScore upload my thumbnails?
No. All image analysis runs locally in your browser using the Canvas API. Thumbnails are never uploaded to external servers. ThumbScore works entirely offline once the extension is installed.
How accurate is ThumbScore's analysis?
ThumbScore evaluates 8 visual criteria that correlate with higher click-through rates based on YouTube best practices. It is a guidance tool, not a guarantee — but consistently high-scoring thumbnails tend to outperform low-scoring ones.
Privacy
ThumbScore does not collect, store, or transmit any personal data. All processing happens locally on your device. No analytics, no tracking, no accounts required.
Full Privacy Policy →Support
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