In your affiliate LemonSqueezy account, you can copy the code and embed it in a web page, byt if you want to use your affiliate link directly in the YouTube description, comments or on another platform like X.
Log in to your LemonSqueezy account.
In Affiliate Hub - Creatives.
Click on text.
And under, Embed code, copy your affiliate link.
Use ProThumbnailPreview and promote the extension based on your impressions. Put your affiliate link and you're ready!
You tell your audience: "I'm giving your audience 24 hours of total Pro access. All you have to do is tell them to install it and test their current best-performing video. '' They will see the difference immediately, and with a $14.95 price point, your conversion rate will be insane.
You sell "Confidence." You tell your audience: "I have checked this against reality (Live Preview), I have checked if the main subject recognizable on mobile (Blur test), and I have checked it against human psychology (Increase CTR). I am ready to publish."
This is the "Pre-Flight Simulation". This is a Validation Tool.
Creators fall in love with their own thumbnails and lose objectivity. They forget the fundamental rules of psychology and composition because they have been staring at the image for hours.
A/B testing requires to wait 7-14 days for statistically significant data.
The Pitch: "Stop waiting days for A/B test results. Use Live Preview to tweak your thumbnail in real-time. Improve visibility, adjust the text, and polish the title in seconds, not days."
It doesn't replace a A/B test, but it helps you eliminate obviously bad options before you publish or start A/B testing. You save time, avoid wasted impressions, and protect your video's early momentum.
You tell your audience: As you've probably noticed, everyone studies and emulates viral thumbnails and headlines. It's hard to know if you've truly "hit the vibe" of a viral video until you place your thumbnail right next to theirs. ProThumbnailPreview lets you insert your thumbnail directly beside the YouTube thumbnail you're emulating — for an instant "vibe check". If yours looks like the "poor cousin" of the viral one, you'll know immediately that your packaging (thumbnail or title) still needs work.
You tell your audience: In a world where everyone uses AI, thumbnails are becoming similar and generic. ProThumbnailPreview helps your thumbnail stand out from the "AI crowd".
You tell your audience: Think of ProThumbnailPreview as the 'final flight control' inside your cockpit. AI is the engine — it can generates your thumbnail, title, and script. But this tool is the instrument panel that tells you: 'You're cleared for takeoff'... or warns you before you crash.
You tell your audience: If you have an idea for a title and thumbnail for a video but not sure how it would look, you can directly test it out on YT homepage to see if it's optimised.
It’s a cheat code to boost your CTR.
Get MORE views. Test if your thumbnail (idea) "pops" or gets lost in a sea of other videos on LIVE YouTube page, BEFORE you even upload video. 100% Private.
All processing happens locally on your machine. Only you can see the unreleased thumbnails and title ideas you test.
ProThumbnailPreview quickly removes subjectivity from your packaging (thumbnail + title) by showing the thumbnail in the "wild" — on the live YouTube page, among your competitors.
This gives you a real, objective picture of what your packaging looks like next to other videos that are fighting for the same viewer attention.
This allows you to improve your packaging, leading to a higher CTR and more views from the impressions that YouTube's algorithm allocates to your video.
More views → more subscribers, likes, comments, and ultimately more revenue from ads on your YouTube channel (or whatever monetization method you use).
The focus is on context and the fact that a thumbnail never stands alone, but is always surrounded by competition.
Stop guessing.
Have you ever posted a video, got a bad CTR, and then frantically changed the thumbnail? That's because you haven't seen what he actually looks like in the feed. Our Live Preview gives you a superpower: A look into the future. Submit your idea directly to the YouTube page before you record a single second of video. If your thumbnail doesn't win this test, it won't win when you post it either. Don't post until you see your video dominating the screen next to your competition.
On smaller screens, text gets tiny, elements blur, and your video disappears in the feed. With the Mobile Scroll Simulator, you can check if your thumbnail actually survives the scroll, grabs attention and gets a click.
Blur Test
The 1.8-Second Test: Viewers don't analyze your image, they scan it. You have less than 2 seconds to grab attention. If your thumbnail isn't clear when it's blurry, it won't be noticed when it's sharp. Check now what is the real focus of your image.
The human eye works in such a way that it first detects large forms and contrasts, and only then reads the text. The Blur Test shows you what the viewer actually sees while scrolling on a mobile phone in motion. Applying the blur test to a thumbnail is to check that your visual hierarchy is clear and that the most important elements "pop" even when the image is not sharp.
Contrast Test
Colors can lie. The human eye first registers the difference between light and dark, and only then color. If your text or face blends into the background in black and white, your thumbnail is unreadable on many screens. Good contrast ensures that the subject stands out clearly from the background, rather than looking "flat". Check if your design has the right "pop" effect.
Did you know that red letters on a green background may look bright, but are the same shade of gray in the black and white spectrum?
This test strips away the colors to reveal the truth about your design. This is crucial for three reasons:
Many phones have "Night Mode" (yellow filter) or low light. Contrast is what remains visible.
About 8% of the male population (your audience) has difficulty distinguishing colors. They need a good contrast.
Colors are makeup, Contrast is the foundation.
Composition Test
The Rule of Thirds is commonly used for quick, efficient framing in both photography and film. Divides the image into nine equal parts, aiming for a simpler, more balanced, or sometimes "safer" composition. This rule guides the viewer's eye through the image in a more natural way, creating energy and tension instead of a static, centered frame. Effective tools for avoiding boring images.
Applying the rule of thirds serves to create visual balance and direct the viewer's attention to key elements
If you have questions or need help, please contact us at: Email: prothumbnailpreview@gmail.com