YouTube Thumbnail Previewer & Mockup Tester

Test your thumbnail and title mockups against real YouTube feeds to maximize CTR.

Mock Video Title

Channel Name

Upload your 1280x720 graphic to preview overlay hazards

14:28

How to Grow on YouTube in 2026 (Beginner Guide)

Creator Hub • 12K views • 2 hours ago

How This Tool Optimizes Content

Thumbnails decide 90% of your click-through rate. Many creators accidentally place crucial text or focal faces behind the bottom-right video duration badge. This tool lets you preview your exact design on mobile and desktop feeds before hitting publish.

Zero Account Lock: Fast, unconstrained access designed for rapid daily content workflows.

Platform-Accurate Standards: Calibrated against native mobile app rendering constraints.

Frequently Asked Questions

What is the optimal YouTube thumbnail size?

Google recommends 1280 x 720 pixels with a 16:9 aspect ratio and a minimum width of 640 pixels, under 2MB in size.

Where is the timestamp overlay located?

The video duration badge sits permanently in the lower right corner, typically covering a 180x60 pixel area on desktop and proportionally larger on mobile screens.