Resize an Image for a Facebook Cover Photo
The result is a wide 820 x 312 px banner. Because it is cropped from the center, pick a picture whose subject is not at the top or bottom edge.
- Never uploaded
- Free, no sign-up
- No watermark
Drop a photo here or choose one from your device
JPG, PNG or WebP · up to 30 MB
What it does
This tool changes the pixel dimensions of an image. Set a target size and the image is scaled to it in your browser — nothing is uploaded. On pages with a fixed width and height, the picture is scaled to fill that frame and the overflow is trimmed from the centre, so it is never stretched. On pages with only a width, the height follows the original proportions.
About this page
The output is exactly 820 × 312 px. The image is scaled to fill that frame and the overflow is cropped from the centre, so nothing is stretched.
How to use it in 3 steps
- Choose an image, or drag it onto the box above.
- The resize runs instantly on your device.
- Check the size shown under the preview, then download the result.
What you can use it for
- Social media posts, stories, covers and banners that need exact dimensions
- Thumbnails and avatars for websites and apps
- Images that must meet a size requirement on a form or upload page
- Wallpapers and print-sized images
Frequently asked questions
Is my image uploaded anywhere?
No. The resize happens in your browser, and the file never leaves your device.
Will my image be stretched or distorted?
No. The image keeps its proportions. When both width and height are fixed, it is scaled to fill the frame and the overflow is cropped from the centre.
Which format is the result?
JPG and WebP images keep their format. Other formats are saved as PNG so transparency is preserved.
Is there a file size limit?
Files up to 30 MB are accepted. Very large images can run out of memory on older phones; if that happens, try a smaller file.