YouTube Thumbnail Size Guide
YouTube thumbnail dimensions 1280×720 and design tips. Resize thumbnails free online.
Official thumbnail size
Use 1280×720 px (16:9). Minimum width 640 px. File under 2MB for upload.
FAQs
What aspect ratio for YouTube thumbnails?
16:9 is required. Our YouTube preset crops and resizes to 1280×720 automatically.
Try the free tool
YouTube Thumbnail Resizer →