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ImageFreeRuns locally

AI Image Upscaler

Upscale images 2× or 4× with AI — sharper, bigger photos, free and in your browser.

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Runs entirely in your browser.

About the AI Image Upscaler

Upscale any image 2× or 4× using an AI super-resolution model that runs entirely in your browser. Unlike a plain resize, it reconstructs detail and sharp edges, so enlarged photos and graphics stay crisp instead of turning blurry. Your files are never uploaded — all processing happens on your device, privately and for free.

AI Image Upscaler features

  • 01

    Real AI super-resolution

    A Swin2SR neural network adds detail as it enlarges, producing far cleaner results than standard bicubic resizing.

  • 02

    2× and 4× scaling

    Double or quadruple the resolution of photos, logos, and artwork with a single click.

  • 03

    100% private

    The model downloads once and runs locally in your browser. Nothing is sent to a server.

AI Image Upscaler FAQ

How do I upscale an image without losing quality?
Upload your image, choose 2× or 4×, and click Upscale. The AI model reconstructs edges and texture as it enlarges, so the result looks sharp rather than blurry.
Is this image upscaler free?
Yes. It's completely free with no sign-up, watermark, or upload limit — the AI runs in your own browser.
Does the image get uploaded anywhere?
No. The upscaling model runs locally on your device, so your images never leave your computer.
Why are very large images resized first?
AI upscaling is compute-heavy in the browser. Very large inputs are scaled down slightly before processing so it finishes in a reasonable time without crashing the tab.
What image formats can I upscale?
JPG, PNG, WebP, AVIF, GIF, and HEIC. The result is saved as a PNG to preserve maximum detail.

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