The Twitch Profile Picture size (256×256px)
Twitch profile pictures use a 256x256 pixel square, displayed as a circle. This avatar represents you across Twitch, next to your channel name, in chat when you post, and on your channel page, so a clean 1:1 upload at this resolution keeps your streaming brand looking sharp everywhere it appears.
Twitch masks the square into a circle, cropping the corners, so keep your logo, mascot, or face centered with a little padding. At 256 pixels there is more room than a tiny messaging avatar, but Twitch still shows it small in chat, so a bold, recognizable mark beats intricate detail that would blur beside chat messages.
Streaming brands live and die by recognition, so consistency matters: many streamers match their avatar to their channel colors, emotes, and overlays for a unified look. Upload a crisp 256x256 so the picture stays clean on your channel page where it displays larger, while still reading clearly at the small size used in chat and search.