🚀Now in public beta — be one of the first creators

The only thumbnail tool that tells you WHY viewers scroll past — not just what your score is.

Upload your thumbnail and see exactly why viewers click — or scroll past — before you publish.

No credit card required

youtube.com/results?search_query=your+keyword
Your thumbnail

Here's what you'll see in 30 seconds

Free analysis · No account needed

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Your thumbnail
71

Scroll-Stop Score

Good

Creators with high scores get more clicks

  • Strong subject clarity — viewer knows the topic instantly
  • Text readability low on mobile — consider larger font
  • Blends with 6 of 8 competitors — low contrast background
Competitor
Competitor

Full competitor analysis + top 3 improvements

More than a preview tool

ThumbRival gives you the full picture — before you ever hit publish.

🛑

Scroll-Stop Rating

AI-powered estimation of how likely your thumbnail stops a scrolling viewer — scored 0–100 with a plain-English label.

🔍

Competitor Gap Analysis

See exactly how you stand out (or blend in) against real YouTube competition for your target search term.

⚡

First Impression Simulation

Know what a viewer thinks in 1.5 seconds before you ever publish — so you can fix it before it costs you clicks.

How it works

Three steps, less than a minute.

1

Upload your thumbnail

Drag and drop your thumbnail image (JPG, PNG, or WebP). We'll use it as the first result in the preview.

2

Enter a search term

Type the keyword you're targeting on YouTube — the same term your viewers would search for.

3

See your thumbnail vs competitors

Instantly see a realistic YouTube results page with your thumbnail alongside real competition. Stand out or iterate.

Frequently asked questions

Is my thumbnail uploaded to YouTube?

No. Your thumbnail is only used locally in your browser to generate the preview. It is never uploaded to YouTube or any third party.

Are the competitor thumbnails real?

Yes — when you search, we pull real thumbnails from YouTube for your target keyword so the comparison is accurate.

What image formats are supported?

JPG, PNG, and WebP up to 2 MB. YouTube's recommended thumbnail size is 1280×720 px (16:9 aspect ratio).

Can I cancel my subscription at any time?

Absolutely. You can cancel your Pro subscription from your account at any time and you won't be charged again.