X Ad Specs and Dimensions 2026
X moves faster than almost any other platform on the internet — and your ads need to keep up. But speed means nothing if your creative is let down by the wrong image ratio, an oversized file, or a format that doesn't render correctly in the feed. With ad formats spanning Promoted Posts, Video Ads, Carousel Ads, and Amplify Sponsorships, each with their own specific requirements, the details matter more than you might think. This cheat sheet brings every X ad dimension, file size, aspect ratio, and character limit together in one clean, scannable reference — so you can move at the speed of the platform without ever compromising on quality.
X Image Ad (Square)
Square image format optimized for high engagement in the X timeline.
Dimensions:
Width in pixels:
1200
Height in pixels:
1200
X Image Ad (Landscape)
Standard wide image format for promoted posts and link previews.
Dimensions:
Width in pixels:
1200
Height in pixels:
628
X Video Ad (Square)
Mobile-friendly square video that takes up more space than landscape.
Dimensions:
Width in pixels:
1200
Height in pixels:
1200
X Video Ad (Landscape)
Standard 16:9 widescreen video for storytelling and high-quality clips.
Dimensions:
Width in pixels:
1280
Height in pixels:
720
X Carousel Image
Swipeable multi-image cards used to drive traffic to websites.
Dimensions:
Width in pixels:
800
Height in pixels:
800
