Useful analysis
A useful analysis tells you what to change. It should identify whether the problem is the visual proof, the emotional tone, the mobile crop or the mismatch with the title.
thumbnail analyzer
Thumbnail Analyzer
Analyze thumbnail clarity, proof, curiosity, mobile readability and title fit before choosing a YouTube cover direction.
Short Answer
Analyze the reason behind the click
A thumbnail analyzer is valuable when it explains why a cover might work. TUMB evaluates the promise, evidence, composition and title relationship so the next thumbnail decision is clearer than the last.
How TUMB Compares
Signal
A single score
A readable breakdown of promise, proof, curiosity and fit
Next step
Try another image
Revise the weakest part of the thumbnail hypothesis
Context
Image-only review
Thumbnail is judged with the title and video intent
How TUMB Helps
Flags when the visual promise is too vague or too crowded.
Connects the review to title hooks and viewer expectation.
Creates specific revision directions instead of generic feedback.
What TUMB looks for
TUMB looks for one main idea, a visible proof element, honest curiosity and a design that still works in a small feed preview.
Build a thumbnail system, not a one-off cover.
Start from the video promise, generate better directions and keep every title-thumbnail decision tied to what viewers expect.