Result will appear here.
Resize a header to a common X/Twitter header size (1500 × 500) — with fit, crop focus, format, and background controls, entirely in your browser.
The width and height start at 1500 × 500 and can be changed to any size. X/Twitter Header Resizer always reports the final dimensions in the result panel.
Cover fills the frame and may crop (the crop focus chooses which part is kept); Contain shows the whole image with padding; Stretch ignores the aspect ratio.
Pick JPG, PNG, WebP, or same-as-input, set the quality, and optionally a target file size. JPG fills transparency with the background color.
X/Twitter Header Resizer is an independent browser tool and is not affiliated with X (formerly Twitter). Confirm the current X/Twitter requirements, since sizes vary by placement and device. Re-encoding removes metadata.
X/Twitter Header Resizer resizes a header to a common X/Twitter header size (1500 × 500), a size commonly used on X/Twitter. The dimensions are pre-filled and fully editable, so you can keep the common size or type your own, and the result panel always shows the final pixel dimensions.
Choose how the image fills the frame: Cover fills it and may crop the edges (use the crop-focus control to keep the important part, such as a face), Contain shows the whole image with padding, and Stretch ignores the aspect ratio. Output can be JPG (a common social default), PNG or WebP (which keep transparency when the background is set to Transparent), or the same format as the input (JPG, PNG, or WebP), and JPG fills transparent areas with your background color. X crops the header differently on desktop and mobile and overlaps the profile photo on the lower-left, so keep important text centered and clear of that corner; a safe-area overlay is a planned enhancement.
This is an independent browser tool and is not affiliated with X (formerly Twitter) — X/Twitter sizes change and can vary by placement and device, so verify the current requirements before uploading. Re-encoding strips EXIF and other metadata, and animated GIFs are exported as a single still frame.
X/Twitter Header Resizer starts at 1500 × 500 and shows the final dimensions, so you can keep the common size or set your own and verify before upload.
Cover fills the X/Twitter frame with a crop focus (center, top, bottom, left, or right) so a face or logo in your header is not lost; Contain keeps the whole image with padding.
Export your header as JPG, PNG, WebP, or the same format, set the quality, and optionally aim for a target file size, then verify the achieved result before uploading to X/Twitter.
Your header is processed in your browser with the HTML canvas and is never uploaded to a server.
Size a header to the common X/Twitter dimensions before you post it.
Use the crop focus or Contain mode so X/Twitter does not cut off the important part of your image.
Set a target file size to aim for a X/Twitter size limit, then check the achieved size before uploading.
Resize a header from a phone, tablet, or computer browser with the file staying on your device.
No. X/Twitter Header Resizer is an independent browser tool and is not affiliated with X (formerly Twitter). Sizes and rules can change, so always verify the current X/Twitter upload requirements before you post.
No. The resize happens in your browser using the HTML canvas, and your header is never sent to imgtoolsbase or any server.
Yes. X/Twitter Header Resizer pre-fills the width and height with 1500 × 500, but both are fully editable, so you can enter any custom size and the result panel shows the dimensions actually produced.
X/Twitter Header Resizer lets you use Contain to keep the whole header with padding, or keep Cover and set the crop focus (for example Top) so the important part of your header stays in frame.
Likely yes. X shows the header with different crops on desktop and mobile and overlaps the profile photo on the lower-left. Keep key text near the center and clear of that corner; a visible safe-area overlay is planned.
Tools that pair well with X/Twitter Header Resizer.