X (Twitter) header size
1500 × 500px
Aspect ratio
3:1
X headers are 1500 × 500 px (3:1) — but the top and bottom ~60 px can be cropped, and your avatar covers the lower-left.
Last verified June 2026
The X header (banner) is a 1500 × 500 px canvas at 3:1 — wide, short, and displayed slightly differently depending on screen size: around 60 px at the top and bottom can be trimmed on some devices. Add the profile photo, which overlaps the header’s lower-left corner, and the truly safe canvas is the central band of the right three-quarters. The header is also the only place on an X profile where you control a large visual, which makes it the natural slot for positioning, proof, or a current launch.
| Variant | Dimensions | Ratio |
|---|---|---|
| Header (recommended) | 1500 × 500 px | 3:1 |
| Crop risk | ~60 px top and bottomTrimmed on some screens — keep text out of these strips. | — |
| Avatar overlap | lower-left cornerThe profile photo circle sits over the header’s bottom-left. | — |
Stack the constraints and the dependable area is the central 1500 × 380 px band, minus the lower-left corner where the avatar sits. Compose your message vertically centered and biased right-of-center; treat the top and bottom 60 px as bleed, never content. Because profiles are viewed in light and dark mode, mid-tone backgrounds that hold contrast in both — or a solid brand color — are safer than near-white or near-black fields that merge with one of the UIs.
The headers that work state a single message readable in under a second: what you build, who it is for, or what just launched. Big type, one visual anchor, generous margin. Profile visitors arrive from a post that interested them — the header’s job is to confirm they are in the right place, not to summarize your company history.
The three classic header failures are text in the top strip (cropped on some phones), a logo in the bottom-left (hidden behind the avatar), and detail at the far edges (trimmed at certain widths). Build a 1500 × 500 template with guides at 60 px top/bottom and a circle placeholder in the lower-left, and reuse it for every refresh.
Unlike the avatar, the header benefits from change: a launch, an event, a milestone, a seasonal offer. It is the cheapest banner ad you own, seen by everyone who taps through from a busy thread. Pair each refresh with a pinned post on the same theme so the profile tells one coherent story.
1500 × 500 px at 3:1. Keep text out of the top and bottom ~60 px (cropped on some screens) and away from the lower-left corner, where the profile photo overlaps.
Different screen sizes trim up to ~60 px from the top and bottom of the header, and small uploads get stretched. Design at exactly 1500 × 500 px and keep critical content in the central vertical band.
One message at large scale: positioning, current launch, or social proof. Avoid fine print — the header is glanced at for about a second, usually right after someone found you through a single post.
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