The recommended X(트위터) X (Twitter) post spec is 1600×900 px (16:9). Timeline 16:9 (1600×900) is not cropped. Header is 1500×500.
| Platform | Placement | Recommended | Ratio | |
|---|---|---|---|---|
| X(트위터) | X (Twitter) header | 1500×500 | 3:1 | Resize |
"Fill" center-crops when the ratio differs. "Fit" pads with the chosen color. "Fit width" keeps the height ratio, for detail pages.
Drag the preview of a "Fill" result to move the crop.
JPG, PNG or WebP, quality 50–100. Each result card shows size and weight.
Select several files to convert them to the same spec and download with "Save all".
1600×900 px, ratio 16:9. Timeline 16:9 (1600×900) is not cropped. Header is 1500×500.
Choose "Fit (padding)" to avoid cropping; with "Fill" you can drag the preview to move the crop.
Upscaling beyond the original blurs. Use the largest original you have; when downsizing, quality 90+ is visually lossless.