Short answer
Go to your Creator Dashboard, open Settings › Channel › Brand, find Video Player Banner and click Update. Upload a 1920×1080 JPG or PNG under 10 MB.
Offline banner size
| Setting | Recommended |
|---|---|
| Size | 1920 × 1080 px (16:9) |
| Format | JPG or PNG |
| File size | Under 10 MB |
Don't confuse it with the profile banner, the wide image at the top of your channel page. That one is a different size and lives in the same Brand settings.
Step by step
Open the Creator Dashboard
Click your avatar at the top right of Twitch and choose Creator Dashboard.
Go to Brand settings
In the left menu, open Settings › Channel and pick the Brand section.
Upload the banner
Under Video Player Banner, click Update and upload your 1920×1080 image.
Check your channel
Open your channel in a private window while offline to see the banner the way visitors do.
What to put on it
Keep it simple: your name, your stream schedule (or where to find it) and one or two socials. Visitors see it at small sizes on phones, so big, short text beats a paragraph.
