Resize an image to 1024×1024

Resize an image to 1024×1024 — the square resolution used by many AI image generators, app stores and high-resolution icons.

Privacy-first: every image is processed locally in your browser. Nothing is uploaded, stored or transmitted to any server.

Where 1024×1024 is used

1024×1024 is a default output size for tools like Midjourney and Stable Diffusion and a common requirement for app icons and store artwork. Feeding a model or an uploader an image at exactly the expected size avoids an extra round of automatic resampling that can soften the detail.

Exact square, no server

Fill or Fit maps a non-square photo into the frame with no distortion, and the whole thing happens on your device — useful when the image is a private reference, a design asset or generated artwork you’d rather not upload.

Frequently asked questions

Does resizing happen on a server?
No. Images are resized in your browser with high-quality step-down scaling for crisp results. Nothing is uploaded.
Will resizing keep the aspect ratio?
Yes by default. Enable “maintain aspect ratio” to fit within your target box without distortion, or turn it off to force an exact width and height.
Are there presets for social media?
Yes. There are presets for Instagram, Facebook, X/Twitter, YouTube and LinkedIn, plus common web, avatar and thumbnail sizes.
Can I enlarge images?
Yes, though enlarging cannot add detail that is not there. Downscaling produces the sharpest results.
Can I resize images in bulk?
Yes. Resize many images at once and download them together as a ZIP.