1600 × 900 pixels (16:9) is the classic size. 1080 × 1080 squares and 1080 × 1350 portraits also show uncropped on phones.
Free tool by Mydrop, no signup
Free X (Twitter) image resizer
An X post image looks best at 1600 × 900 pixels (16:9) or 1080 × 1350, and the header is 1500 × 500: resize any photo to fit right here.
1Pick the network and size
2Add your photo
3Adjust and download
Post it to X at the right size
Mydrop shows each image in the real X preview, with up to 4 images per post, before it publishes.
Your photo never leaves your device: it is resized in your browser and nothing is uploaded.
How to size images for X
Standard ratios show whole
Since 2021 a single image in a standard ratio (16:9, 1:1, 4:5) shows uncropped on phones. Very tall or very wide images are cropped to the centre.
Up to 4 images, 5 MB each
A post carries up to 4 images of up to 5 MB (GIFs up to 15 MB). With several images, X crops each tile, so keep the subject centred.
The header loses its edges
At 1500 × 500 (3:1), about 60 pixels at the top and bottom may be cut on some screens, and the profile picture covers the lower left.
Example: “A 4,032 × 3,024 photo for an X header” = a 4,032 × 1,344 crop, saved at 1,500 × 500
Sizes checked on October 10, 2026, against X's help centre and developer docs.
X size guide
Every X (Twitter) image size for 2026
The upload size for each X format, and what to know before you post.
| Format | Size (px) | Ratio | Good to know |
|---|---|---|---|
| Landscape post | 1,600 × 900 | 16:9 | The classic post size; shows whole in the feed. |
| Square post | 1,080 × 1,080 | 1:1 | Shows whole on phones and desktop. |
| Portrait post | 1,080 × 1,350 | 4:5 | Shows whole on phones; takes more room than 16:9. |
| Header | 1,500 × 500 | 3:1 | About 60 px at the top and bottom may be cut; the profile picture covers the lower left. |
| Profile picture | 400 × 400 | 1:1 | Shown as a circle, up to 2 MB. |
Ads on X accept more ratios (1:1, 16:9, 9:16, 4:5, 2:3, 1.91:1), but organic posts display best in the standard ratios above.
Sized, checked, published
X posts at the right size, in Mydrop
Mydrop shows every image in the real X preview, counts the post the way X counts it, and publishes on time.
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Questions
X (Twitter) image sizes, answered
1500 × 500 pixels (3:1). About 60 pixels at the top and bottom may be cut on some screens, and the profile picture covers the lower left.
Up to 4 images of up to 5 MB each, or one GIF up to 15 MB. With several images, X shows each in a cropped tile until it is tapped.
Because it is very tall or very wide, or because the post has several images. A single image in a standard ratio (16:9, 1:1, 4:5) shows whole.
400 × 400 pixels, square, up to 2 MB. X shows it as a circle.
Yes. No signup, no watermark, no limit, and your photo never leaves your device.
Size it here. Post it to X with Mydrop.
Preview, approve and publish every X post at the right size. Free to start.
