What size is an X/Twitter header banner?

The X header banner is 1500x500 pixels, a 3:1 ratio, up to 5 MB (2 MB for a GIF). The circular avatar overlaps the lower-left corner and your bio buttons cover the bottom strip, so keep important content in the upper-right two-thirds.

What size should an X profile picture be?

Upload a square image at least 400x400 pixels, with 800x800 recommended, under 2 MB. X masks it to a circle, so centre your subject and keep it clear of the corners that get cropped away.

Why does my X banner look cropped?

X displays the 1500x500 banner responsively and overlays your avatar and bio on top of it. Content near the lower-left and bottom edges is hidden behind those elements, which is the most common reason a banner looks cut off.

What file formats does X accept for profile images?

X accepts JPG, PNG, and GIF for both the profile picture and header. Use PNG for crisp logos and text, and keep within the 2 MB avatar and 5 MB header size caps to avoid heavy compression.

What size are in-post images on X?

A 16:9 image at 1600x900 is the cleanest in-timeline ratio with no crop. Square 1200x1200 images expand fully on tap but get centre-cropped in the timeline, so keep key content centred.

X/Twitter Profile & Banner Size Tool

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X crops, masks, and overlays your profile imagery in ways that are easy to get wrong — the avatar becomes a circle, the bio covers the banner’s bottom, and the timeline crops in-post images. This lookup gives you the exact upload size, the safe crop, and the right export settings for each asset.

How it works

Pick an asset and the tool returns X’s native specification:

Profile picture: 800x800 recommended (400x400 minimum), masked to a circle, under 2 MB. Keep the subject inside the inscribed circle.
Header / banner: 1500x500 at 3:1, up to 5 MB. The avatar overlaps the lower-left and bio buttons cover the bottom strip.
In-post image: 1600x900 (16:9) for a clean timeline render, or 1200x1200 (1:1) which expands on tap but is centre-cropped in the feed.

Each result lists the upload size, how X displays it, the aspect ratio, a safe-crop note, and accepted formats and size caps.

Tips and example

Because the circular avatar sits over the lower-left of the banner and your bio text and buttons cover its bottom edge, design your 1500x500 header with the logo or message in the upper-right two-thirds. For the avatar, keep your face or mark centred and away from the corners so the circular mask does not clip it. Export logos and text-heavy banners as PNG for sharp edges; use high-quality JPG for photographic backgrounds.