Banner Check

Check your YouTube banner on every screen

Drop your channel banner: check its size, shape and file, and see the safe area that shows on every phone, computer and TV.

Free. Works in any browser, on a phone or a computer. What you put here stays on your device.

About Banner Check

What it checks

How to use it

Rules as read on October 3, 2026 from YouTube Help: Manage your channel branding, YouTube Data API: ChannelBanners: insert.

Questions

What size should a YouTube banner be?
2560 × 1440 pixels, which YouTube recommends; at least 2048 × 1152 in 16:9, and 6 MB or smaller. Keep text and logos in the middle 1235 × 338 (at 2048 × 1152).
Why is my banner cut off on a phone?
YouTube shows the same picture differently on each device. Only the safe area in the middle is sure to show everywhere; the rest can be cut.
Is my picture uploaded anywhere?
No. The check runs in your browser.