Image Upscaler
Upscale and enhance image quality with AI, directly in your browser
Image Upscaler Online | Free AI Photo Enhancer
Enhance your image resolution online for free using artificial intelligence. Powered by the ESRGAN model and WebGL acceleration, you can upscale your photos to 2x or 4x while preserving sharpness and fine details. All processing happens in your browser — your files are never uploaded to any server.
100% local processing in your browser. No files are sent to external servers.
Drag image here
or click to browse
How It Works
- Drag or upload an image (PNG, JPG, WebP, etc.)
- Choose the upscaling factor: 2x or 4x
- Click "Upscale Image" and wait for processing
- View the side-by-side before/after preview
- Download the enhanced image as a PNG file
Frequently Asked Questions
Which algorithm is used to enhance images?
We use the ESRGAN Slim (Enhanced Super-Resolution GAN) model optimized for the browser, accelerated by TensorFlow.js with a WebGL backend for high performance directly on your device.
Which image formats are supported?
All common image formats are supported: JPG, PNG, WebP, GIF, BMP and others. The output file is always saved in PNG format for maximum quality.
How long does processing take?
The first run takes a few seconds to load the AI model. Subsequent runs are faster. Large images and the 4x factor take longer than 2x on small images.
Are my files secure?
Absolutely. All processing happens locally in your browser via WebGL. Your images are never sent to external servers. No data ever leaves your device.