Why is it slow on big images?

Upscaling is heavy AI work done on your device. The first run also downloads the model. Smaller images finish faster.

AI · 100% Client-side

AI Image Upscaler

Sharpen and enlarge blurry photos up to 4x with an AI model that runs in your browser. Free, no watermark, nothing uploaded.

Scale

or drop image here

JPG, PNG, WebP. Smaller images upscale faster.

🖼️

1. Add your image

Drop in a JPG, PNG, or WebP. Smaller images work best.

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2. AI upscales it

An on-device model adds detail at 2x or 4x.

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3. Download

Save the sharper, larger image.

Is it really free?

Yes. It uses an open-source AI model that runs in your browser. No signup, no watermark.

Are my photos uploaded?

No. The AI runs on your device. Your photo never leaves your browser.

Why is it slow or failing on big images?

Upscaling is heavy AI work done on your device. Very large images can exhaust browser memory. Images under ~1500px on the long edge work best.

First run is slow, why?

It downloads the AI model once, then caches it for next time.