Post an image at the wrong size and social platforms will crop it awkwardly, blur it, or add ugly bars around it. Getting the dimensions right means your photos look sharp and professional everywhere. The good news is that resizing takes seconds once you know the numbers.
Common sizes worth remembering
- Square post (Instagram, Facebook): 1080 x 1080 pixels.
- Portrait / story: 1080 x 1350 or 1080 x 1920 pixels.
- Profile picture: 400 x 400 pixels (displayed as a circle).
- LinkedIn banner: 1584 x 396 pixels.
Resize without stretching
The biggest mistake is squashing an image into a shape it was not meant for. Keep the aspect ratio locked when you only need to scale it down, so nothing looks stretched. When you need an exact shape, crop first to that ratio, then resize. That way the important part of the photo stays in frame.
Do not forget file size
Large images upload slowly and can be compressed harshly by the platform. After resizing, run the image through a compressor to bring the file size down while keeping it sharp. A smaller file uploads faster and often looks better because the platform compresses it less.
Save an original, full-resolution copy before resizing. You can always make a smaller version from a big one, but you cannot recover detail once it is gone.
With the Image Resizer you can type exact pixel dimensions or pick a preset, and it all happens in your browser, so your photos never leave your device.