Every platform crops, stretches, or squeezes an image that doesn't match its expected dimensions — usually without warning you until after it's already posted. Here's the reference list, and a way to fix it in one click.
Current standard sizes
- Instagram square post — 1080 × 1080 px
- Instagram / Facebook Story or Reel cover — 1080 × 1920 px
- YouTube thumbnail — 1280 × 720 px
- YouTube channel banner — 2560 × 1440 px
- LinkedIn profile banner — 1584 × 396 px
- Facebook cover photo — 820 × 312 px
- Twitter / X header — 1500 × 500 px
- WhatsApp profile photo — 800 × 800 px
Why getting this wrong is worse than it seems
A photo sized for Facebook's cover dropped into a LinkedIn banner slot doesn't just look slightly off — LinkedIn will crop it from a completely different aspect ratio, often cutting off faces or text entirely. Getting the pixel size right before uploading means the platform shows your image exactly as designed, not as auto-cropped.
Resizing without distortion
SNTools' Social Media Resizer has all the sizes above built in as presets. Pick your platform, and it automatically center-crops your photo to fill the target frame — no stretching, no squeezing, no manual math.
FAQ
Will my photo look stretched after resizing?
No — proper resizing tools crop to fill the target ratio rather than stretching the image, keeping proportions natural.
Do these sizes change often?
Platforms occasionally update recommended sizes, but the ones listed above have been stable for the current generation of each platform's layout.
Try it yourself, free
Resize and smart-crop to any major platform's exact size — free and instant.