X (Twitter) keeps changing its preferred sizes, and uploading the wrong dimensions means awkward cropping. Resizing to the right size first puts you in control of the frame.
The recommended size
X (formerly Twitter) headers look best at 1500 by 500 pixels, a 3:1 banner.
How to resize for X (Twitter)
- Open the X (Twitter) Header Resizer.
- Add your image.
- It is set to the correct header dimensions, so you just position the content.
- Download and upload to X (Twitter).
Processing happens in your browser, so your images stay private.
Tips that help
- Keep important content centered and high, away from the profile photo overlap.
- Test on mobile, where the visible crop is tighter.
- Use a simple image so it reads well behind profile elements.
Finish before you post
Compress the final image with the Image Compressor so it uploads fast, and crop with Crop to Aspect Ratio if you need a different shape.
Frequently asked questions
What size should a header be on X (Twitter)?
X (formerly Twitter) headers look best at 1500 by 500 pixels, a 3:1 banner.
Will resizing distort my X (Twitter) image?
Not if you keep the aspect ratio locked. The tool scales the image to fit the target shape cleanly.
Is my image uploaded to resize it?
No. Resizing runs in your browser, so your image stays on your device.