Upscale Image
Enlarge images using AI-powered upscaling with Real-ESRGAN. Choose 2x or 4x enlargement. All processing happens in your browser — your images never leave your device.
Drop an image here or click to upload
Supports JPG, PNG — AI-powered upscaling with Real-ESRGAN
Frequently Asked Questions
What is AI upscaling?
Upscaling increases image resolution using AI to add detail. 2x doubles dimensions, 4x quadruples them (e.g., 500x500 becomes 1000x1000 or 2000x2000).
What's the maximum input size?
Images up to 1024x1024 pixels work best. Larger images will be resized before upscaling to ensure browser performance.
Is processing really in my browser?
Yes, all AI processing happens on your device using WebAssembly. Your images never leave your browser.
How long does upscaling take?
Processing time depends on image size and your device. 2x typically takes 5-15 seconds, 4x takes 15-30 seconds.
Does 4x always look better?
Not always. 4x creates larger files and may add artifacts on complex images. 2x is safer for web use, 4x for print-quality needs.