YouTube Thumbnail CTR & Quality Analyzer
Upload your thumbnail photo to preview it inside live YouTube Mobile & Desktop feeds, test 0.5s glance visibility, check contrast, and calculate your predicted CTR potential score.
Drop your thumbnail here or browse
Supports JPG, PNG, WebP up to 10MB • Works instantly in your browser
How It Works
Upload Your Thumbnail
Drag and drop any JPG, PNG, or WebP thumbnail from your phone or computer.
Test Live Feed Simulation
Toggle between YouTube Mobile and Desktop feeds in both Dark & Light themes.
Analyze CTR & Glance Score
Check pixel contrast, timestamp safe zones, and rule-of-thirds composition overlays.
Tips for Better Results
- •Over 75% of YouTube views happen on mobile: Always prioritize how your thumbnail looks at tiny 120px scale.
- •Keep the bottom-right corner clear: YouTube stamps the video duration badge (e.g. 14:22) directly over this quadrant.
- •High contrast wins: Ensure your subject has at least 50% luminance contrast from the background to pop on dark mode.
- •Simulate the 0.5-second Glance Test: If a scrolling viewer cannot decipher your core emotion or hook in half a second, simplify your visual.
- •Limit text to 2–4 impactful words: Never repeat your entire title; use bold contrasting words that ignite curiosity.
Frequently Asked Questions
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Need more creator growth strategies?
Read our in-depth guides on YouTube ranking, CTR titles, and vertical video hooks.