X (Twitter) post – 1200 × 675 px
For images in posts on X, 1200 × 675 pixels at a 16:9 ratio has become established. The former Twitter Cards documentation with the official figures is no longer available.
Format: X (Twitter) Post · 1200 × 675 pixels · aspect ratio Feed
For plain backgrounds (product photos, scans). No model, ready instantly.
Pick a mode, then click in the image or drag with the mouse held down. The connected area there is corrected.
Transparent cut-out: set Background → Transparent. JPEG cannot store transparency.
For web developers
Applies to chat and story templates. Without a custom choice, the template default is used.
Page settings
The images are processed entirely in this browser. Nothing is uploaded – you can verify this yourself in the network panel of your browser developer tools.
Images and order
Drag images here
or · Paste with Ctrl+V
Multiple selection possible · JPG, PNG, WebP
No images yet. The order in this list becomes the page order of the PDF.
X (Twitter) post image size: 1200 × 675 px (16:9)
Images in an X post are shown at 1200 × 675 pixels, a 16:9 ratio, on desktop. On mobile the timeline shows them taller, and once a post is opened the full frame appears – so a 16:9 export is the version that survives both views without being cut. In the feed the image is previewed as a wide rectangle, so a vertical photo shows far less of its height there than most people expect.
Two practical points. X compresses uploads aggressively, so photographs benefit from a slightly higher JPEG quality than you would use on a website, while screenshots and charts should be PNG: sharp edges and small text are exactly what the compressor damages first. Keep important content away from the edges as well, because the rounded corners and the overlay of the post text reduce the visible area slightly.
For the card that appears when you share a link rather than an image, the dimensions are different – 1200 × 630 at 1.91:1 – and the OpenGraph image maker handles that crop directly, while the link cover tool produces the header image for a blog or newsletter. Keep the file size moderate as well: X recompresses large uploads, so extra bytes cost loading time without improving the result.
Good to know
Transparency: there is no official specification for this format any more. The value comes from several independent sources; other places quote 1600 × 900. Both ratios are 16:9, so the motif is never distorted.
Related tools
Frequently Asked Questions (FAQ)
Three questions about the 1200 × 675 post image – and why X sometimes shows more of it than the timeline does.