The Twitch Channel Banner size (1200×480px)
The Twitch profile banner runs across the top of your channel page at 1200x480 pixels, a 5:2 ratio. This is the header viewers see when they land on your channel while you are offline or browsing your page, making it valuable branding space to communicate who you are, your schedule, and where else to find you.
Because Twitch layers your profile picture and channel name over the banner and the visible height can shift with browser and window size, keep essential information within a centered safe zone. Text pushed to the far edges or extreme top and bottom risks being cropped or overlapped by profile elements sitting on top.
Many streamers use this banner for practical info: a stream schedule, social handles, and sponsor logos, alongside their brand art. Keep that content large enough to read and grouped centrally so it survives responsive cropping. A cohesive design that matches your avatar, panels, and overlays makes the whole channel feel professional and instantly recognizable to returning viewers.