YouTube Community Post Image Size
Polls and images on the Community tab engage subscribers. Don't let them get cropped awkwardly.
1
1:1 Ratio
YouTube previews images in a **1:1 square** on mobile feeds. If you upload a wide image, the sides will be hidden until clicked.
2
GIF Support
You CAN upload GIFs to the community tab to grab attention. Keep them under 5MB.