Why Image Size Matters on Social Media
Each platform has its own optimal dimensions. Using the wrong size causes:
- Profile photos that appear cropped in feeds
- Cover images that look pixelated or cut off
- Posts that don’t render crisply on retina screens
Recommended Image Sizes by Platform
Instagram
| Format |
Dimensions |
Aspect Ratio |
| Profile photo |
320×320 px |
1:1 |
| Square post |
1080×1080 px |
1:1 |
| Portrait post |
1080×1350 px |
4:5 |
| Landscape post |
1080×566 px |
1.91:1 |
| Story / Reel |
1080×1920 px |
9:16 |
Twitter / X
| Format |
Dimensions |
| Profile photo |
400×400 px |
| Header image |
1500×500 px |
| Tweet image |
1200×675 px |
Facebook
| Format |
Dimensions |
| Profile photo |
170×170 px |
| Cover photo |
820×312 px |
| Post image |
1200×630 px |
LinkedIn
| Format |
Dimensions |
| Profile photo |
400×400 px |
| Cover image |
1584×396 px |
| Post image |
1200×627 px |
How to Resize in One Click
- Open the Social Media Image Resizer
- Upload your image
- Select your platform and format (e.g. Instagram Square)
- The tool crops and resizes to exact specifications
- Download the ready-to-post image
Or use the general Image Resizer for custom dimensions.
Tips
- Always start from a high-resolution original — scaling up a small image adds blur
- For profile photos, use a square crop before uploading to any platform — they all crop to circles or squares
- Keep a 1200×630 px master — this works reasonably well across all platforms as a fallback
- Use PNG for graphics with text, JPEG for photos
Common Mistakes
- Uploading a vertical phone photo as a Twitter header — it will be severely cropped
- Using the same image for all platforms — each platform crops differently; always use a platform-specific version for important content
- Ignoring retina screens — upload 2× the minimum resolution (e.g. 1080×1080 instead of 540×540) for crisp display on high-DPI devices