🎯 AI-Powered Thumbnail Scoring
Stop guessing.
Start clicking.
Upload your YouTube thumbnails and get an instant AI score across 9 proven CTR signals — before you publish a single video.
9
CTR Signals Scored
42%
CTR Lift from Emotional Faces
43%
CTR Boost from Curiosity Gap
2–10%
YouTube Average CTR Range
UNIQUE TO THUMBSCORE
🔍 Competitor Thumbnail Audit
Upload your thumbnail + paste a competitor's YouTube URL. Get a head-to-head AI comparison across all 9 CTR signals with gap analysis and actionable fixes.
Try it free →UNIQUE TO THUMBSCORE
⚠️ Clickbait Trap Detector
Check if your thumbnail makes promises your video can't keep. Detect mismatches that cause early exits and crush your watch time and algorithm reach.
Try it free →What we score
9 signals. One score.
Zero guesswork.
Every signal is backed by data from millions of YouTube thumbnails and CTR research studies.
😮
Face & Emotion (20%)
Emotional faces increase CTR by up to 42%
📱
Mobile Readability (15%)
Simulates your thumbnail at 320×180px
🎨
Color Contrast (12%)
Checks visibility on light and dark YouTube UI
✏️
Text Length (12%)
Under 12 chars significantly outperforms longer text
✨
Simplicity (11%)
Max 3 visual elements for highest CTR
🎯
Niche Color Fit (10%)
Colors calibrated for your specific niche
🔍
Curiosity Gap (10%)
Curiosity-gap thumbnails lift CTR by up to 43%
🔗
Title Alignment (8%)
Thumbnail and title should complement not repeat
💼
Branding (2%)
Consistent visual style builds channel recognition
How it works
From upload to insights
in 30 seconds.
01
Upload Thumbnails
Drag and drop 2–3 thumbnail variations. JPG, PNG, or WebP accepted.
02
Select Your Niche
Pick your content category. Scoring weights calibrate to your specific niche.
03
Get Your Score
Our AI returns a 0–100 score across all 9 signals in about 15 seconds.
04
Act on Insights
Get specific fixes and 5 AI-rewritten copy suggestions per thumbnail.
Pricing
Simple, honest pricing.
Start free. Upgrade when you need more tests.
Most Popular
Creator
$9
/month
- ✓ 30 tests/month
- ✓ Full signal breakdown
- ✓ Test history
- ✓ Copy rewriter (5 angles)
Pro
$19
/month
- ✓ Unlimited tests
- ✓ PDF reports
- ✓ Title + thumbnail scorer
- ✓ Priority support
Agency
$49
/month
- ✓ Everything in Pro
- ✓ Team seats (5 members)
- ✓ Bulk upload (10 sets)
- ✓ White-label reports
- ✓ API access