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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.

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.
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Readability

Contrast, brightness, detail density and text coverage.

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Hook strength

Length, specificity, numbers, curiosity and benefit clarity.

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A/B difference

Variant separation, visual contrast and mobile distinctness.

Action checklist

Support this free tool

If this local creator tool helped your publishing workflow, you can support future maintenance.

Support via PayPal

Support does not influence scoring logic or recommendations.

Practical workflow notes for Thumbnail & Hook Score Studio

Analyze YouTube, TikTok, Shorts and social thumbnails locally for readability, hook clarity, color balance, mobile preview and A/B comparison.

This page follows the Bluesky Labs local-first tool pattern: keep the main task visible, explain what happens in the browser, and separate the result area from supporting notes. The goal is to make the tool feel consistent with the main Bluesky Labs experience while keeping each subdomain lightweight and focused.

Recommended flow

  1. Start with the default inputs or example content, then replace them with your own file, text, URL, or planning details.
  2. Review the privacy receipt, helper copy, and warning messages before downloading, copying, or sharing any output.
  3. Use the related utilities only when they continue the same workflow, instead of sending visitors to unrelated pages.
  4. Save or export the result after confirming that names, dimensions, timing, or formatting match the intended destination.

Quality checklist

Consistent interfaceControls, cards, and helper text stay close to the main Bluesky Labs dark UI language.
Clear browser-local messagingWhere supported, processing notes explain that user inputs remain in the current browser session.
Search-friendly contextThe page includes a focused title, description, canonical URL, and structured data that match the actual tool.

Frequently asked questions

Does this page upload my input?

The page is designed for browser-first workflows. Some libraries may load from approved CDNs, but the main task should avoid unnecessary server submission unless clearly stated.

Why does the layout look similar to other Bluesky tools?

A shared card, badge, and dark-panel language helps visitors move between tools without relearning the interface.

Should I review the output manually?

Yes. Local tools are fast, but you should still check exported files, generated copy, or calculated values before using them in production.

Is this page intended to be indexed?

Yes, when it has a canonical URL, no noindex directive, and a clean sitemap entry that points to the same preferred page.