Score your YouTube
thumbnail in seconds.
Upload any thumbnail. Get an instant CTR score with face detection, text legibility analysis, and contrast scoring — benchmarked against 300k+ real thumbnails.
Drop your thumbnail here
JPEG or PNG · 16:9 recommended · Max 5MB
Analysis in three steps.
Drop a JPEG or PNG. Any YouTube thumbnail size — we normalize it automatically.
Face detection, text legibility, contrast ratio, and composition — all scored against 300k+ real thumbnails.
Overall CTR score, per-signal breakdown, and specific fixes ranked by expected impact. No fluff.
Not a wrapper. An actual model.
Trained on 300k+ real thumbnails
Not a GPT vision wrapper. Our model was trained on actual YouTube thumbnails across niches, paired with real CTR data.
Signal-level feedback
We don't say "looks good." We tell you the face is too small, the text is unreadable on mobile, and the contrast is 2.1:1 when you need 4.5:1.
Platform-native insight
Built by a team that studies creator economics for a living. We know what converts viewers into paying fans, not just casual clicks.
These tools are free because Base.Tube makes money when creators monetize — not when they pay for SaaS. When you're ready to turn your audience into income, we're here.