Why image size matters for social media
Every social media platform has specific image dimensions it expects. Upload an image that is too large or the wrong aspect ratio and the platform will crop it automatically, often cutting off important parts of your photo. Upload one that is too small and it will appear blurry or pixelated when stretched to fill the display area.
Getting the dimensions right before uploading ensures your images look sharp, load quickly, and display exactly as you intend. It takes less than 20 seconds with a free online tool.
Recommended image sizes by platform
| Platform | Type | Size (px) |
|---|---|---|
| Feed (square) | 1080 x 1080 | |
| Feed (portrait) | 1080 x 1350 | |
| Stories / Reels | 1080 x 1920 | |
| Shared image | 1200 x 630 | |
| Cover photo | 820 x 312 | |
| Shared image | 1200 x 627 | |
| Cover photo | 1584 x 396 | |
| X (Twitter) | Post image | 1600 x 900 |
| X (Twitter) | Header photo | 1500 x 500 |
| YouTube | Thumbnail | 1280 x 720 |
How to resize your images
- Open the Resize Image tool.
- Upload the image you want to resize. JPG, PNG, and WebP formats are supported.
- Enter the width and height from the table above for your target platform.
- Download the resized image and upload it directly to your social media account.
The tool runs entirely in your browser. Your images are never uploaded to a server, so the process is instant and completely private.
Tips for the sharpest results
- Start with the largest image you have. Scaling down preserves quality. Scaling up introduces blur.
- Maintain aspect ratio when possible. If the platform expects a 1:1 square, crop to square before resizing to avoid stretching.
- Use PNG for graphics and text overlays. PNG preserves sharp edges. Use JPG for photographs.
- Compress after resizing if file size matters. Use the Compress Image tool to reduce file size without visible quality loss.