X (Twitter) · Header
1500 × 500 px
A 3:1 strip. The profile picture overlaps the lower-left.
X crops in-timeline images to roughly 16:9 and only shows the full frame when a post is opened.
| Placement | Size | Ratio | Notes |
|---|---|---|---|
| Header | 1500 × 500 | 3:1 | A 3:1 strip. The profile picture overlaps the lower-left. |
| Profile picture | 400 × 400 | 1:1 | Displayed as a circle at 133×133. |
| Post image | 1600 × 900 | 16:9 | Cropped to about 16:9 in the timeline. |
| Summary card | 1200 × 628 | 1.91:1 | The 1.91:1 large-summary card image. Minimum 300×157. |
Aspect ratios used by X (Twitter)
Questions
What size should a X (Twitter) header be?
1500 × 500 px (3:1). A 3:1 strip. The profile picture overlaps the lower-left.
What are all the X (Twitter) image sizes?
Header 1500×500, Profile picture 400×400, Post image 1600×900, Summary card 1200×628. The table above lists the aspect ratio for each.
Does X (Twitter) compress uploaded images?
Yes — every major platform re-encodes. X crops in-timeline images to roughly 16:9 and only shows the full frame when a post is opened.
Other platforms
Dimensions are the platform's recommended upload sizes, last checked 2026-08-07. Platforms revise these without notice — if you spot a change, let us know.