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YouThumb

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Browser extension that Optimizes Youtube Thumbnail CTR before publishing. Get the clicks you deserve.

Stress test thumbnails

Cost / License

  • Freemium (Pay once)
  • Proprietary

Since

  • Since 2026

Platforms

  • Google Chrome  Available on chromium browsers Edge, Chrome, Brave
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YouThumb information

  • Developed by

    Aldin Kozica

  • Licensing

    Proprietary and Freemium product.

  • Pricing

    One time purchase (perpetual license) that costs from $5 + free version with limited functionality.

  • Alternatives

    6 alternatives listed

  • Badge

    Get an embeddable badge for YouThumb

  • Supported Languages

    • English
YouThumb was added to AlternativeTo by dinalllll on and this page was last updated .

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What is YouThumb?

Browser extension that Optimizes Youtube Thumbnail CTR before publishing. Get the clicks you deserve. Most thumbnails don’t fail because of design — they fail because they don’t stand out in the feed.

YouThumb helps you predict performance before you go live. Preview your thumbnail in real YouTube feeds and get feedback based on competing thumbnails.

WHY IT WORKS • See your thumbnail next to real competitors • Understand if it actually stands out • Fix weak spots before publishing • Make decisions based on data, not guesswork

REAL FEED PREVIEW • Home, Search & Watch Sidebar • Mobile & Desktop layouts • Dark & Light mode • Control position in feed

CTR STRESS TESTS • Blur Test — instant recognition • Grayscale — contrast & clarity • Mobile View — small-screen performance

PERFORMANCE ANALYSIS • Compare against 5 competing videos • Get a Feed Rank score • Clear suggestions to improve CTR

FREE TO USE • No sign-up for preview • 100 free AI tokens • Works directly inside YouTube