YouTube Banner Size Resizer

A YouTube channel banner is one image that has to work on a TV, a laptop and a phone. TVs show all of it, computers show a wide strip across the middle, and phones show even less — only the central 1235 × 338 pixel “safe area” is visible everywhere. This tool resizes your image to YouTube's 16:9 banner size, keeps the JPG under the 6 MB limit, and draws a layout guide so you can check that your channel name and logo sit inside the safe area. Nothing is uploaded.

How to use this tool

1. Choose your banner image (ideally 2048 px wide or more).
2. Pick 2048 × 1152 (the minimum) or 2560 × 1440.
3. Crop to 16:9, or fit the whole image on a blurred or solid background.
4. Download the banner and open the layout guide.
5. Move text and logos into the yellow safe area if they fall outside it, then upload the banner in YouTube Studio → Customisation → Branding.

Formula

safe area = 1235 × 338 px at 2048 × 1152, scaled by W ÷ 2048 for larger banners; centred horizontally and vertically

At 2560 × 1440 the factor is 1.25, so the safe area becomes 1544 × 423 px. The JPG quality starts at 92% and drops in 7-point steps only if the file would be over 6 MB.

Example

A 3000 × 1000 panorama cropped to 2048 × 1152 is scaled by max(2048 ÷ 3000, 1152 ÷ 1000) = 1.152 to 3456 × 1152, and 704 px are trimmed from each side. The safe area is the middle 1235 × 338 px, from x = 406 to 1641 and y = 407 to 745.

YouTube banner requirements (2026)

Minimum upload size 2048 × 1152 px with a 16:9 aspect ratio; safe area for text and logos 1235 × 338 px at that size; file size 6 MB or smaller. Larger images, such as 2560 × 1440, are accepted and scaled.