What’s the correct size for a YouTube header in 2025? Mine looks weird on mobile and TV.
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I had the same issue until I looked up the correct youtube header size. Turns out the full image should be 2560×1440 px, but only the center 1546×423 px is guaranteed to be visible on all devices. This safe zone is super important if you want your logo or text to show up properly no matter where people are watching. PropellerAds has a great visual guide for it!