Resize Twitter/X Header
without uploading it.
Get your banner to X's recommended 1500×500 header size before uploading it.
Drop an image, or click to browse
Drop your image — 1500×500 is pre-selected.
Click "Resize image".
Download and upload it as your header.
Why there's no upload step
X (formerly Twitter) recommends 1500×500 pixels for profile header images. The header is responsive and can appear at different sizes depending on the viewer's screen, so resizing to the recommended ratio first — with your main subject centered — gives the safest result across devices.
Is my image uploaded anywhere?+
No. Resizing happens entirely in your browser.
Will my image be stretched?+
No — aspect ratio is preserved.
Why does my header look cropped differently on mobile?+
The header is responsive and X may show a different crop depending on screen size — keeping key content centered helps it survive different crops.
What format is the output?+
JPG.