Creator Workspace · Visual Hook QA

Thumbnail & Hook Score Studio

Score thumbnail readability, hook clarity, color balance, mobile preview and A/B variants locally in your browser. This is a checklist score, not a CTR prediction.

Thumbnail A

Optional Thumbnail B

Title / hook text

Platform

Text coverage estimate (%)

Open Creator Route

No upload. No face recognition. Pixel stats and hook structure are checked inside this tab.

Overall score

-- /100

Add a thumbnail to begin. Add a second image for A/B comparison.

Desktop preview

Variant A waiting.

Mobile preview / variant B

Variant B or vertical cover preview waiting.

Readability

Contrast, brightness, detail density and text coverage.

Hook strength

Length, specificity, numbers, curiosity and benefit clarity.

A/B difference

Variant separation, visual contrast and mobile distinctness.

Action checklist

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