Tall 2:3 pins fill the most feed space. Add a short text overlay.
Upload at the exact size where you can, because platforms recompress images and resizing twice softens them. If your image has a different shape, it will be cropped or padded. The Image Resizer lets you choose, and everything runs in your browser. Work out other dimensions with the Aspect Ratio Calculator.
Platforms change their layouts from time to time, so check the current preview before an important post.
Image ResizerResize a photo to exact pixel dimensions or a percentage, crop it to fill a social-media size, or fit it inside a frame with a background color — all locally in your browser.
Your privacy We use essential storage to run the site. With your OK we also remember your recently used tools, measure traffic with Google Analytics and count tool usage anonymously. Learn more
Install devpack
Tap the Share button in Safari’s toolbar.
Scroll down and choose Add to Home Screen.
Tap Add. The web app’s icon appears on your home screen.
In Safari’s menu bar choose File → Add to Dock (or tap the Share button and choose Add to Dock).
Click Add. The web app opens from your Dock or Launchpad in its own window.
Open this page in Chrome, Edge or Samsung Internet, or Safari on iPhone, iPad or Mac.
Use the browser’s Install app or Add to Home Screen option.
Installed web apps open in their own window; browser-based tools keep working without an internet connection. Learn more
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