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Uses a small AI model, but 4x on large photos needs a lot of memory. A computer is faster for those.
Uses a small AI model, but 4x on large photos needs a lot of memory. A computer is faster for those.
Enhance and upscale your images up to 4x resolution with AI super-resolution. Perfect for printing and high-resolution displays. Runs entirely in your browser.
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PNG, JPG, or WebP • Max 10MB
First use downloads about 3 MB (the AI model and its engine). 4x on a large photo can take a minute or more on a phone.
Our AI-powered image upscaler uses ESRGAN super-resolution to enhance your images while preserving details and clarity. Perfect for preparing photos for print, high-resolution displays, or professional use. All processing happens in your browser — your images never leave your device.
How does AI image upscaling work?
Our AI upscaler uses ESRGAN (Enhanced Super-Resolution Generative Adversarial Network) to intelligently add detail and resolution to your images. The AI model runs entirely in your browser using WebAssembly, so your images never leave your device.
What image formats and sizes are supported?
You can upscale PNG, JPEG, and WebP images up to 10MB in size. The tool supports 2x and 4x upscaling factors. For best results, start with a clear source image.
Is my image data private and secure?
Yes, completely. The AI model runs locally in your browser — your images are never uploaded to any server. All processing happens on your device, ensuring complete privacy.
What is the difference between 2x and 4x upscaling?
2x upscaling doubles your image dimensions (e.g., 500×500 becomes 1000×1000). 4x quadruples them (500×500 becomes 2000×2000). Higher upscaling produces larger images but takes longer to process.
Can I use Image Upscaler on my phone?
Yes. It runs in any modern mobile browser. 2x works well on most phones, but 4x on a large photo needs a lot of memory and can be slow or fail, so use a computer for those.
How long does AI upscaling take?
Processing time depends on image size and your device's performance. Small images typically take 5–15 seconds, while larger images may take 30 seconds or more. The AI model runs entirely in your browser.