Zro7Zro7/Upscale Image

Upscaler

Enlarge images 2×/4× with high-quality resampling.

Runs entirely in your browser. Files never leave your device.

Drop images here or click to select

Multiple files supported

How it works

  1. 1

    Drop an image

    Add the image you want to enlarge.

  2. 2

    Choose a factor

    Pick 2×, 3× or 4×.

  3. 3

    Download the enlarged image

    Save the upscaled result.

Frequently asked questions

How does Zro7 enlarge images?

It uses progressive high-quality Lanczos-style resampling in canvas — sharper than a browser default resize.

Will 2×/4× recover lost detail?

No upscaler invents true detail. Zro7 produces the sharpest possible enlargement without cloud AI.

Which formats work best?

PNG for graphics with edges and text; JPEG for photos; WebP for the best size-to-quality output.

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