All X (Twitter) image sizes
4 sizes with exact pixel dimensions, and a free resizer for each one.
| Size | Pixels | Ratio | Resize |
|---|---|---|---|
| X Post Image | 1600 × 900 | 16:9 | Resize X Post Image |
| X Header Image | 1500 × 500 | 3:1 | Resize X Header Image |
| X Profile Photo | 400 × 400 | 1:1 | Resize X Profile Photo |
| X Card Image | 1200 × 628 | 1.91:1 | Resize X Card Image |
X (Twitter) resizers
About X (Twitter) images
X displays images differently in timeline cards vs expanded views. Timeline previews are cropped to roughly 16:9 for single images, while the expanded view shows the full upload. Multi-image tweets use different crop ratios entirely.
X removed its ML-based auto-crop in 2021 in favor of a center crop, which makes image composition more predictable. Keep your subject centered and you'll avoid most surprises.