YouTube Thumbnail Analyzer
Professional-grade analysis with instant preview & zero re-upload requirements
Performance-First Architecture
Upload Your Thumbnail
Drag & drop or click to browse. Preview appears instantly with no lag.
No re-uploads needed. All analysis runs client-side for maximum speed.
Instant Preview
Preview loaded in 0ms
1
Upload
2
Text Analysis
3
Contrast & Focus
4
Mobile Check
5
Results
Analyzing Thumbnail...
Checking text readability and sizing
Analysis running 100% client-side • No data uploaded to servers
Overall Thumbnail Score
0
out of 100
Calculating score based on proven YouTube CTR factors...
Text Readability
0/25
Analyzing text size and word count...
Visual Focus
0/25
Checking for clear subject and clutter...
Contrast & Color
0/20
Evaluating contrast ratios...
Mobile Optimization
0/20
Testing mobile visibility...
Emotion & Engagement
0/10
Checking for emotional triggers...
Problems Detected
Proven Improvements
Performance Architecture: All analysis runs client-side using optimized JavaScript.
Thumbnail preview appears instantly via
URL.createObjectURL().
No re-uploads required. UI remains fully interactive during analysis.