▶️ YouTube Thumbnail Size Checker

Upload an image to preview at different sizes · Safe zone markers · Crop simulation

📤 Upload Thumbnail
🖼️

Drag an image here, or click to select

Supports JPG, PNG, WebP

✅ Recommended Specs

Official YouTube Thumbnail Recommendations

  • Recommended:1280 × 720 px (16:9)
  • Minimum:640 × 360 px
  • Max File Size:2MB (under 1MB recommended)
  • Formats:JPG, PNG, GIF, BMP
  • Aspect Ratio:16:9 (only recommended ratio)
⚠️ Safe Zone Tip: YouTube adaptively displays thumbnails across devices. Desktop shows full 16:9; mobile may crop the sides. The bottom ~25% may be covered by the video title and timestamp — keep important text and elements centered.

FAQ

Best YouTube thumbnail size?

1280×720px (16:9), under 2MB, JPG format preferred. Ensure readability on both mobile and desktop.

How long until a thumbnail updates?

Usually immediate, but YouTube may take minutes to hours to process. If not updated, wait 30 minutes and check again.

Why is my thumbnail blurry?

Images under 640px get upscaled and appear blurry. Use 1280×720 or higher resolution with export quality of at least 85%.