Many creators still search for twitter post image size even though the platform is now called X. This guide focuses on single-image posts in the timeline: the recommended pixels, why a wide frame works, and how to export a clean graphic with FeatureImg’s X Post preset.
This is not a full catalog of Twitter or X specs. Profile photos, header images, and ad placements use different rules. Here we cover the single post image you attach to a timeline update.
Recommended Twitter post image size
The most practical starting point for timeline graphics is 1600 × 900 pixels (16:9). FeatureImg’s X Post format exports at that size so you design on the correct canvas and download without a separate resize step.
| Label | Dimensions | Aspect ratio | Best for |
|---|---|---|---|
| FeatureImg X Post export | 1600 × 900 px | 16:9 | Single-image posts, announcements, visual hooks |
| Format name | Twitter / X post image | Wide timeline card | Headline + visual, screenshots, product updates |
If your team already ships 1200 × 630 px Open Graph assets, those are closer to link-preview cards than in-feed post images. For timeline graphics, match the 1600 × 900 px preset so exports align with the format page and editor.
Why a wide image works well in the feed
Timeline readers scroll fast. A wide image uses horizontal space well, keeps type large enough to scan, and gives you room for a headline plus a visual anchor (screenshot, product shot, or simple background).
Wide layouts also separate jobs cleanly: the image carries one visual promise, and the post text carries links, nuance, and thread context. That split works for launches, lessons, frameworks, and blog promos where the graphic should stop the scroll, not replace the full post.
When to use a Twitter post image
Reach for a designed image when:
- You announce a product launch, release, or milestone
- You promote a blog post, podcast episode, or newsletter issue
- You share a quote, lesson, or framework that fits one frame
- You post a data point or result that needs a visual hook
- You want a recognizable layout family across recurring updates
Skip a custom image when a short text-only post is enough, or when a link card already shows the right preview and your copy does the selling.
Best practices
One message per image. Pick a single takeaway: the launch name, the metric, the lesson title. Do not paste the whole post into the graphic.
Use a readable headline. Aim for about five to eight words. Timeline thumbnails shrink quickly on mobile.
Keep contrast high. Light gray type on pale gradients fails on bright screens and in dark-mode timelines. Solid fields, simple gradients, or calm panels behind text usually hold up better.
Leave enough spacing. Clients can crop edges. Keep logos and words away from the outer border.
Use the post copy for details. URLs, bullets, and paragraphs belong in the post (or thread), not on the image.
Common mistakes
Random stock photos. Generic imagery signals “placeholder update” instead of a specific story.
Too much text. Dense bullets and slide exports rarely survive mobile scrolling.
Low contrast. Pastel-on-pastel type disappears when the timeline is busy.
Unclear topic. If readers cannot tell what the post is about in one glance, the image did not earn its space.
Screenshots with unreadable UI. A full product capture without a cropped focus area often looks muddy at feed size.
How FeatureImg helps
FeatureImg keeps the X/Twitter canvas locked while you design:
- Open the X Post format page or the X Post editor preset.
- Choose a template suited to your update (editorial, product launch, data point, or split layout).
- Edit the title and subtitle fields tied to the layout.
- Pick a background (solid, gradient, or shape preset) that keeps type readable.
- Export PNG, JPEG, or WebP at 1600 × 900 px and attach the file when you compose your post.
FeatureImg does not publish to Twitter or X for you. You export the file, then upload or attach it in your normal posting workflow.
For step-by-step creation tips, read how to create a Twitter post image. For layout direction by post type, see Twitter post image ideas.
Quick size checklist
- Design at 1600 × 900 px (FeatureImg X Post format).
- Keep one headline idea per frame.
- Check contrast at a reduced zoom in the editor preview.
- Export and attach when composing the post (FeatureImg does not post for you).
Create your next Twitter post image
Pick the size your timeline graphic needs, design for fast scrolling first, and keep copy short. When you are ready, start from the X Post format page or open the X Post editor preset to choose a template and export a clean image.