X (Twitter) Header Size Resizer: 1500×500 Header, 400×400 Profile

X (Twitter) header resizer: headers, profile pictures and post images at the right size.

Choose an image and a format to get a file at X's recommended size, cropped to fill or fitted with a background color, ready to upload.

X (Twitter) image sizes

Image	Recommended size	Notes
Header	1500 × 500 px (3:1)	The profile picture covers part of the bottom left; phones crop the top and bottom
Profile picture	400 × 400 px	Shown as a circle
Post image	1600 × 900 px (16:9)	Shows uncropped in most timelines

Keep text and logos near the center: the edges are cut differently on phones and computers.
Leave the bottom-left area empty; the profile picture sits on top of it.
Use the same visual style as your profile picture so the profile looks like one brand.

Count your post with the X character counter, check an account's real creation date with the X account age checker, or see aged X accounts.

Keep text in the middle. The profile photo covers the lower left of the header, and phones crop the top and bottom, so put logos and words in the central band.
Export as PNG for logos and text, JPG for photos. PNG keeps edges crisp; JPG keeps photos small.
Check it on a phone. Most visitors see your profile on mobile, where the header is shown smaller.
Match the profile photo. Use colours that work with your 400×400 profile picture so the top of the profile looks like one design.

1500 × 500 pixels, a 3:1 image. Keep important content near the center.

400 × 400 pixels. It is shown as a circle.

1600 × 900 pixels (16:9) usually shows uncropped in the timeline.

No. It is resized in your browser and downloaded straight to your device.