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YouTube Thumbnail Previewer

See exactly how your thumbnail looks on every device

Mockup Configuration
Drag & drop your thumbnail here or click to browse from device Recommended: 1280 × 720 px (16:9 ratio)

How To Preview Your Thumbnails?

Follow these guidelines for each input method.

From YouTube URL

  • Copy the URL of any live YouTube video, mobile link, or Shorts.
  • Paste it into the URL field and click the "Generate Previews" button.
  • Inspect the resulting grids and download the desired sizes directly.

Upload Image

  • Switch to the "Upload Image" tab to test local files before publishing.
  • Drag & drop your JPG/PNG file onto the zone or click to select from browser.
  • Your file immediately renders across mockups so you can audit readability.

Essential Thumbnail Tips

Adopt these industry standards to maximize organic click-through rates.

Ideal Dimensions

Ensure your design uses a resolution of 1280 × 720 px with a 16:9 aspect ratio for ideal high-density displays.

Strict Size Limits

YouTube enforces a maximum file weight of 2MB. Export as compressed JPG/PNG to stay within guidelines.

High Contrast & Colors

Use high contrast, bright color palettes, and bold typefaces. Previews verify if small text is readable on mobile feeds.