The right size, every platform
Every network wants a different shape — a square post, a tall story, a wide thumbnail. This image resizer lets you hit any of them exactly, either with a one-tap preset or your own pixel values, and crops intelligently from the center so the important part stays in frame.
How to use it
- Drop in an image.
- Pick a social preset or type custom width and height.
- Choose Crop to fill the size exactly, or Fit to keep the whole image.
- Export as PNG, JPG or WebP.
Not sure which size you need?
Two ratios cover most of 2026: 1080×1350 (4:5) for feed posts and 1080×1920 (9:16) for anything vertical. For every other surface — banners, covers, thumbnails, pins — the exact dimensions for all seven major platforms are in our image sizes cheat sheet, and each one exists as a preset in the tool above.
Private and instant
There’s no upload step and no queue. The preview updates live as you change dimensions, and the download is generated on your device. If the exported file needs to be smaller — for a platform cap or a fast web page — finish it in the image compressor.