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Resize Image to 1024x1024

AI image and icon size, free, no upload required

Resize any image to exactly 1024x1024 pixels in your browser. This is the default square output size for Midjourney, DALL-E and Stable Diffusion, and a common size for app icons and profile artwork.

1024x1024 px

1:1 square, ~1 megapixel

No uploads

Files stay on device

Fit, Fill, Stretch

Three resize modes

W
H

Dimensions fixed to 1024 x 1024 px for this page.

Scales and crops to fill exact size. No white space. No distortion. Recommended.

85
Smaller fileBetter quality

Drop image here to resize to 1024x1024

JPEG, PNG, WebP, AVIF, HEIC. All processing stays in your browser.

If your image is smaller than 1024x1024 pixels, the tool will upscale it and show a warning before download. For the sharpest result, start with a source image that is at least 1024 pixels on its shortest side.

When to use 1024x1024

1024x1024 is the de facto standard square resolution for AI-generated images and is also widely used for icons and profile artwork.

AI image generators

Midjourney, DALL-E and Stable Diffusion all default to 1024x1024 for square output. Resize reference images to this size before uploading them as prompts.

App icons and product artwork

1024x1024 is the master size many app stores request before generating smaller icon sizes automatically.

NFT and digital art

A common export size for digital artwork and collectible images shared on marketplaces and social platforms.

Source file for smaller icons

Because 1024 divides cleanly into 512, 256 and 128, it works well as a master file for generating a full icon set.

Other preset sizes

1920x1080Full HD wallpaper1080x1080Instagram square512x512AI model / icon256x256Windows / app icon300x300ThumbnailCustom sizeEnter any dimensions

Frequently asked questions

Why is 1024x1024 the standard size for AI generated images?

1024x1024 pixels equals roughly one megapixel, which is the native output resolution most AI image generators are trained on. Midjourney, DALL-E and Stable Diffusion all default to 1024x1024 for square outputs because generating at this resolution produces the sharpest, most coherent results. Generating at much higher resolutions directly can introduce artifacts or repeated elements, so most workflows generate at 1024x1024 first and upscale afterward if a larger size is needed.

My source image is smaller than 1024x1024. What happens?

If your image is smaller than 1024x1024 pixels in either dimension, this tool will upscale it to fit and a warning will appear before you download. Upscaling stretches existing pixels rather than adding new detail, so the result may look softer than a native 1024x1024 image. For the sharpest output, start with a source image that is already 1024 pixels or larger on its shortest side. If your image is much smaller, consider using an AI upscaler first, then resizing the upscaled result here.

What else is 1024x1024 used for besides AI art?

1024x1024 is also a common size for high-resolution app icons, NFT artwork, large profile pictures and source files for design assets that will later be exported to multiple smaller sizes. Because it is exactly double 512x512, it works well as a master size that can be downscaled cleanly to 512, 256 or 128 pixels without quality loss.