Resize an image to 1500×500
Resize an image to 1500×500 — the 3:1 banner that runs across the top of a Twitter/X profile.
Privacy-first: every image is processed locally in your browser. Nothing is uploaded, stored or transmitted to any server.
The 3:1 header strip
X profile headers render at 1500×500, an extreme 3:1 strip, and your round avatar overlaps the lower-left corner. Resizing to the exact canvas lets you check that nothing important sits where the avatar or the profile text will cover it.
Keep focal points clear
The header is cropped differently across devices, so keep the key content center and right. Fill covers the strip, Fit pads it, and the preview shows the safe area — all resized on your device.
Frequently asked questions
- Does resizing happen on a server?
- No. Images are resized in your browser with high-quality step-down scaling for crisp results. Nothing is uploaded.
- Will resizing keep the aspect ratio?
- Yes by default. Enable “maintain aspect ratio” to fit within your target box without distortion, or turn it off to force an exact width and height.
- Are there presets for social media?
- Yes. There are presets for Instagram, Facebook, X/Twitter, YouTube and LinkedIn, plus common web, avatar and thumbnail sizes.
- Can I enlarge images?
- Yes, though enlarging cannot add detail that is not there. Downscaling produces the sharpest results.
- Can I resize images in bulk?
- Yes. Resize many images at once and download them together as a ZIP.