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Image Upscaler

Enlarge a photo 2 or 4 times, with added detail.

JPG, PNG, WebP, AVIF, HEIC, GIF or BMP

Drop another image anywhere on this page, or

Runs on your device. No upload wait.

What you get

  • Detail, not blur
  • 2 or 4 times

Questions

How is this different from resizing?

Resizing stretches the pixels you have, so a small picture comes out soft. This uses Real-ESRGAN (BSD licence), an AI model trained to restore the detail of real photos: edges come out crisp and textures look natural. It can’t recover detail that was never there, such as unreadable text, and it smooths away some noise and compression blocks.

How long does it take?

From seconds to a few minutes, depending on the picture and the device; a graphics card the browser can use (WebGPU) helps. The page says how long before you start, shows how long is left, and lets you stop. The model (about 5 MB) and the AI engine download once, the first time, and then stay in your browser.

How large can the picture be?

With a graphics card the browser can use: up to 2 megapixels for 4 times and 4 megapixels for 2 times. On the processor alone: up to 1 megapixel, because larger pictures would take too long. Phones allow half. For bigger pictures, choose 2 times or shrink the picture first.

Are my images uploaded anywhere?

No. Your images are opened and processed on your device, and the results are saved straight back to it. Nothing is uploaded. How to check.

Is it free? Do I need an account?

It is free to use and there is nothing to sign up for. There are no watermarks and no daily limits.

Missing something, or not working as it should? Tell us