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Upscale Image — Free AI Image Upscaler

Upscale any image 2x or 4x without losing quality — AI rebuilds real detail as it enlarges. Runs entirely in your browser — your photo is never uploaded.

Drop images here, or choose

One photo at a time · JPG, PNG, WebP & camera RAW (CR2, CR3, NEF, ARW, DNG, RAF, ORF…)

Settings

4x turns a 1000×750 image into 4000×3000. Very large images are automatically upscaled 2x so the result fits your device's memory. Applies to the next photo.

Detail suits most images. Pick Smooth when the original is noisy, grainy or heavily compressed — it cleans rather than amplifies the noise.

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How this image upscaler works

Enlarging an image the ordinary way just stretches the same pixels thinner — that's why zoomed images go soft. An AI upscaler is different: it has learned what edges, texture and detail look like, and rebuilds them at the larger size.

1

Pick 2x or 4x

4x takes a 1000×750 image to 4000×3000 — past 4K, ready for large prints. Small originals from old phones, messaging apps and the web benefit the most.

2

AI rebuilds the resolution

A super-resolution neural network processes the image tile by tile on your own GPU, reconstructing sharp edges and natural texture instead of interpolating between pixels — upscaling without the usual quality loss.

3

Download at full resolution

One photo per run — JPG or lossless PNG, no watermark, no resolution cap on the free result, because there is no paid tier.

Private by design. The whole job runs on your device, so the photo is never uploaded, stored or used for training.

Frequently asked questions

How do I upscale an image without losing quality?

Drop the image here and pick 2x or 4x. A super-resolution AI rebuilds the image at the higher resolution — reconstructing edges, texture and fine detail instead of stretching pixels — so the upscaled image stays sharp. It runs in your browser and the full-resolution result is free.

Can I upscale an image to 4K?

Yes — 4x upscaling turns anything 960×540 or larger into 4K (3840×2160) or beyond. A 1000×750 photo becomes 4000×3000, which is more than enough for 4K screens and large prints.

Is this image upscaler free, and is there a watermark?

Completely free, no watermark, no sign-up, no image limit. The AI runs in your own browser, so the image is never uploaded, stored or used for training.

What's the maximum size it can produce?

Up to about 64 megapixels on a typical computer — for example a 16 MP photo upscaled 2x. Very large originals are automatically upscaled 2x — or enhanced at their original size when even that is too big — and the tool tells you when that happens.

More free photo tools

Want the full treatment? The AI Photo Enhancer is this same engine framed for quality repair. Cut subjects out with the Background Remover, or shrink the results for the web with the Photo Compressor.