YouTube Thumbnail Checker

Upload a thumbnail and we'll check it againstYouTube's official thumbnail requirements— format, minimum size, 16:9 aspect ratio, and upload limits — before you find out the hard way.

Image

Drag and drop an image, or click to browseJPG, PNG, or GIF

🔒 Processed locally. Your image never leaves your browser.

Details

Upload an image to see its details here.

Filename
Format
Dimensions
Aspect ratio
File size

Validation

Validation results will appear here.