Check your X/Twitter header before you upload

Check the size, shape, file type, transparency, safe area, and mobile crop before you upload.

Opens with X/Twitter header

Where will you upload it?

Result

Ready when your image is.

Add an image to see whether it is ready to upload.

Preview

3:1

Add an image to see the guidance area and approximate crop.

White frame: safer areaTeal frame: approximate crop view

Guidance area: keep important content inside the white frame when possible.

Responsive vertical crop: X notes that some displays may crop about 60 pixels from the top and bottom.

Mobile framing

Add an image to see the mobile crop.

Checks the wide header shape, image size, file type, file size, and whether important content stays clear of mobile cropping and profile overlap.

X/Twitter headers can lose content near the top and bottom on some displays, and the profile area may compete with lower-left content.

Use the guidance area for text and logos. The crop overlay reflects X's note that some displays may trim the top and bottom.

This helps you catch common X/Twitter header risks, but the exact crop can vary by device, layout, and future platform changes.