Get the right pixel dimensions for X posts, headers, and profile photos in seconds, entirely in your browser.
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X (Twitter) presets
Click any preset to open the editor with that size already selected.
Sizes checked against X (Twitter)'s own guidelines in October 2026. Where X (Twitter) gives only a ratio or a minimum, the size is the common one that meets it.
Format guide
Each format shows up differently. Here's when to use each one.
Post Image
1200 × 675 px · 16:9
The standard in-feed image. 16:9 displays without cropping in the timeline. Single images show at full width; multiple images are arranged in a 2- or 4-up grid.
Header Banner
1500 × 500 px · 3:1
The wide banner behind your profile photo. Keep key content centred, since the left and right edges get clipped on mobile. Update this whenever your branding changes.
Card Image
800 × 418 px · 1.91:1
Shown when you share a URL with Twitter Card meta tags. The og:image should be at least 800×418 px for a large card. Smaller images fall back to a thumbnail.
Profile Photo
400 × 400 px · 1:1
Displayed as a circle across the platform. Upload a square at 400×400 px minimum. Keep the subject centred so it reads well at all display sizes.
FAQ
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