Question 1

How does the free AI image upscaler work?

Accepted Answer

Our upscaler uses Real-ESRGAN and Real-CUGAN deep learning models running directly in your browser via WebGPU or WebGL. Your images are processed locally — they never leave your device.

Question 2

What upscale factors are supported?

Accepted Answer

We support 2x and 4x upscaling. 2x doubles each dimension (4× pixels), while 4x quadruples each dimension (16× pixels). Choose based on your output resolution needs.

Question 3

Are my images private and secure?

Accepted Answer

Yes. All processing happens entirely in your browser using local GPU acceleration. No image data is ever uploaded to any server.

Question 4

Which AI models are used for upscaling?

Accepted Answer

We use Real-ESRGAN for general and anime images, and Real-CUGAN for 2D/illustration art. Each model is optimized for specific content types to deliver the best results.