Thumbnail Analyzer & Contrast Checker

Reviews available thumbnail dimensions and visual presentation factors such as contrast, composition, and small-screen readability.

Why This Tool Is Essential

Thumbnails are an important part of video packaging. Reviewing clarity and composition at small sizes can help identify obvious design problems, but no visual formula guarantees clicks.

How It Works Step-by-Step

  1. Enter a video URL or upload a thumbnail image link.
  2. YTMulti fetches available resolutions and renders small-screen preview thumbnails.
  3. Evaluates visual contrast and mobile preview clarity.

How to Interpret Results

  • Resolution Status: Reports the available thumbnail dimensions returned by YouTube.
  • Mobile Preview: Displays how the image appears at 150px feed size.

Frequently Asked Questions

Q: What is the recommended YouTube thumbnail size?

A: YouTube recommends a 16:9 thumbnail, commonly 1280×720 pixels, with a minimum width of 640 pixels for standard video thumbnails.