YouThumb Tester

Preview and test your thumbnails and titles directly on the YouTube homepage to maximize your CTR before you hit publish.

Stop Guessing Your YouTube CTR — See It Before You Publish Ever wonder why your CTR is stuck at 0.2% even though your thumbnail looks great? The problem isn’t your design — it’s context. Most creators upload thumbnails without ever seeing how they actually compete inside the YouTube Feed, Search, or Suggested Videos. That’s where clicks are won or lost. This extension fixes that. 🔍 What it does Preview your thumbnail directly inside YouTube Home Feed Search results Suggested videos Simulate real competition before you upload AI-powered thumbnail scan Scores your thumbnail based on real psychological click triggers Flags generic, weak, or scroll-stopping issues Actionable feedback Clear fixes, not long essays Focused on increasing actual click-through rate 🤖 Built for creators who care about performance This tool is made for creators who want more views, not just “good-looking” thumbnails. If your video doesn’t earn the click, the algorithm doesn’t matter.