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Make any photo 4× larger with AI

It rebuilds edges and texture as it enlarges, instead of just stretching pixels. Everything happens on your own device — the photo is never uploaded.

Runs entirely in your browser. Your files never leave your device.

Upscales 4×. A 1000 × 800 photo comes out at 2000 × 1600.

The first image takes a little longer while the tool gets ready. After that, later images start immediately.

Input is limited to 1024 × 1024 pixels. Larger photos need to be resized first.

How to upscale an image

  1. 1

    Upload your photo

    Drop in a PNG, JPG, WebP, or HEIC up to 1024 × 1024 pixels. Nothing is uploaded — the file is read directly by your browser.

  2. 2

    Wait for the tiles

    The image is split into overlapping 256-pixel tiles and each one is upscaled separately, so even a large photo fits in memory. Progress is shown tile by tile, and you can cancel at any point.

  3. 3

    Compare and download

    Drag the slider to compare the original against the result at the same scale, then download a full-resolution PNG at four times the original width and height.

Image upscaling questions

Exactly 4×, in both width and height — a 1000 × 800 photo becomes 4000 × 3200. That is 16 times the pixel count, which is why input is capped at 1024 × 1024.

No, and be sceptical of any tool that claims otherwise. It rebuilds plausible edges and texture from what similar photos usually look like — a very good guess, not recovered information. A face that is 12 pixels wide will not become a recognisable person, and text too small to read will not become readable.

Only a little. Upscaling works on the detail that survived in the original, so a sharp small photo improves a lot and a soft or motion-blurred one improves very little. If the original is already blurry at 100%, doubling its size mostly gives you a larger blurry photo.

Input is capped at 1024 × 1024 pixels. Above that, the browser has to run far too many tiles and hold a very large output canvas in memory, which is slow on desktops and often fails outright on phones. Resize the photo first — the free image resizer is one click away.

Two reasons. The tool has to get ready once, and it is remembered for next time. After that the speed depends on your hardware: a mid-sized photo takes seconds on a capable machine, while a slower one can take several minutes on the same work. The tile counter shows exactly where it has got to.

No, and that is the usual assumption worth correcting: "AI" here does not mean a cloud service. The enlarging happens inside your browser, on your own machine — the photo is read, enlarged, and saved without ever being transmitted. That is also why there is no queue, no credit, and no rate limit on this page.

PNG is lossless, so it does not throw away the detail that was just rebuilt. It is also four times the pixel count of the original. If you need a smaller file afterwards, run the result through the image compressor.

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Beyond Upscaling

Generate It Large in the First Place

Upscaling reconstructs detail that was never captured. It is a repair, and on a small or heavily compressed source there is a limit to what any model can invent. The studio renders at full resolution from the start, so there is nothing to reconstruct.

  • Generate high-resolution images straight from a description
  • Rebuild a subject as a new, sharp image instead of stretching the old one
  • Export at the size your print or landing page needs
Explore Studio Features
A black labrador underwater, rendered at full resolution with fur and water detail intact