How do I make my YouTube channel art online?
Make YouTube Banners Online in 3 Steps
  1. Choose a Template. Choose from dozens of YouTube banner templates and get started!
  2. Edit Away. Add photos and customize your YouTube banner just the way you want it.
  3. Save and Share. Save your YouTube banner as an image or share it online to your favorite social media platforms.

How do I create a banner?

Create a banner
  1. Click File > New and choose Built-in to use one of the templates installed in Publisher. ...
  2. Select the Banners category, then click the banner design that you want — for example, Baby Congratulations.
  3. Under Customize and Options, select any options you want.
  4. Click Create.

What size is a YouTube banner?
2560 x 1440 pixels
YouTube channel art requirements. Your starting point for your YouTube Channel art is the optimal banner image size of 2560 x 1440 pixels. That's a large image file, and you may not have an appropriate image that is big enough at your disposal.
How do I change my banner on YouTube?
Go to the top right menu and select My Channel. In order to add a new channel art, near the top of the screen, click Add Channel Art. If you want to change your existing channel art, hover your cursor over the existing banner until you see the edit icon
How big should Youtube thumbnails be?
Your custom thumbnail image should be as large as possible, as the image will also be used as the preview image in the embedded player. We recommend your custom thumbnails: Have a resolution of 1280x720 (with a minimum width of 640 pixels). Be uploaded in image formats such as as.JPG, .GIF,.BMP, or.PNG.