YouTube Thumbnail Tester
Upload your thumbnail, enter your title, and see exactly how it looks in the real YouTube feed – surrounded by actual videos. Test on desktop and mobile.
🎨 Upload Your Thumbnail & Title
Click or drag to upload your thumbnail
Recommended: 1280×720 (16:9)
✓ Thumbnail ready
Max 100 characters (YouTube's limit)
🎯 Why test your thumbnail?
Your thumbnail is the first thing viewers see. Testing it against real YouTube videos helps you answer: Does it stand out? Is the text readable? Will people click? Our YouTube thumbnail tester shows your thumbnail in context with actual YouTube content, so you can make data-driven design decisions.
We populate the feed with real videos from popular channels to give you an authentic comparison. Toggle between desktop and mobile views to ensure your thumbnail looks great everywhere.
📝 Tips for higher CTR
- High contrast: Make sure your thumbnail pops against YouTube's dark background
- Readable text: Use large, bold fonts that are legible on mobile
- Faces work: Thumbnails with faces often get more clicks
- Brand consistency: Use consistent colors/fonts so viewers recognize your content
❓ Frequently asked questions
Where do the real videos come from?
We fetch thumbnails from popular YouTube channels to create an authentic feed. All thumbnails are loaded directly from YouTube's servers.
Is my uploaded thumbnail stored anywhere?
No! Everything stays in your browser. We never upload your images to any server – it's 100% private.
Can I test multiple thumbnails?
Yes! Just upload a new image and click "Generate Preview" again. The feed updates instantly.
Why doesn't my HD thumbnail show?
The preview resizes your image to fit the feed layout, but the original quality is preserved for accurate color/contrast testing.