X (Twitter) Image Sizes

Up-to-date X (Twitter) image sizes for 2026 — in-stream posts, header, and profile.

FormatSize (px)RatioNotes
In-stream image1600 × 90016:9Single image posts; 16:9 avoids awkward crops.
Square image1200 × 12001:1Good for carousels and quotes.
Header / banner1500 × 5003:1Profile banner.
Profile photo400 × 4001:1Displays as a circle.
Card image1200 × 6281.91:1Summary-with-large-image link cards.

Bolta writes your platform-sized posts in your brand voice, automatically — and waits for your approval before posting.

This page is a spec sheet, not a tool. Bolta applies the spec for you — every post, every platform, without the lookup.

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From correct size to published post

Knowing the size is step one. Bolta formats your content to X (Twitter)'s spec automatically and publishes it across every platform from one place.

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FAQ

Frequently asked questions

What is the best image size for X (Twitter) posts?

The most reliable X (Twitter) post size is 1600×900px (16:9). See the full table above for Stories, profile, and cover sizes.

What aspect ratios does X (Twitter) support?

X (Twitter) supports 16:9, 1:1, 3:1, 1.91:1. Use the format that matches where the image appears.

Why does my X (Twitter) image look blurry or cropped?

Usually the upload was too small or the wrong ratio, so the platform up-scaled or cropped it. Export at the exact pixel size in the table, then compress so the file uploads cleanly.
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X (Twitter) Image Sizes | Free AI Tool