Image Upscaler

Upscale and enlarge images up to 4x with high-quality AI-powered resizing. Free, fast, and private.

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Drag & drop your image here

or click to browse

Accepted: JPG, PNG, WebP

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Scale Factor

Output Format

How to Upscale Images

Select or drag your image

Choose 2x, 3x, or 4x enlargement

Save your upscaled image

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Enhanced sharpening for crisp, clear results

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Enlarge images up to 4 times

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Files never leave your device

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WebWorker-powered for speed

How does the upscaling work?

We use Lanczos3 resampling combined with AI-enhanced sharpening to produce crisp, clear results with improved detail.

What's the maximum image size?

There's no strict limit, but very large images (8000px+) may be slow. We recommend images under 4000px for best performance.

Will the quality look good?

Lanczos3 is one of the best resampling algorithms. Results are sharp and clean, though extreme upscaling (4x) naturally has limits.

Is my data safe?

Yes. All processing happens locally in your browser. Your images are never uploaded to any server.