Resizing an image to 1080x1350 pixels creates the ideal 4:5 aspect ratio used by Instagram portrait posts and many other social media formats. This dimension maximizes vertical space in social feeds while maintaining excellent image quality.
The 1080 pixel width matches the maximum display width on most social media platforms, ensuring your image appears at full resolution without any upscaling artifacts. The 1350 pixel height provides the maximum allowed portrait ratio on Instagram without being cropped.
To resize to exactly 1080x1350 with ImgTools, upload your image, navigate to the Resize tab, and enter the target dimensions. If your source image has a different aspect ratio, disable the aspect ratio lock and enter both values manually, or crop to 4:5 first for better control over the composition.
For the highest quality results, start with a source image that is larger than 1080x1350. Downscaling produces sharper results than upscaling. If your source is a 4000x3000 photograph, crop to 2400x3000 (4:5 ratio) first, then resize to 1080x1350.
This dimension is also useful for Pinterest standard pins (though 1000x1500 is preferred for Pinterest), Facebook portrait posts, and any content targeting mobile-first platforms where vertical images perform better than landscape.
ImgTools uses high-quality browser-based resampling for clean, sharp results. No software installation needed, no account required, and your images never leave your device.