Is this AI image upscaler free?

Yes. The browser engines are completely free, need no account, and never leave your device.

How much can it upscale an image?

Up to 4x, reaching roughly 4K resolution depending on the input image.

Are my images uploaded or stored anywhere?

The browser engines process locally. The NVIDIA PiD engine processes on a GPU and deletes every file immediately, so nothing is ever stored.

What AI model powers the upscaling?

NVIDIA PiD, a brand-new pixel-diffusion super-resolution model, with Real-ESRGAN as the in-browser engine.

Image Super-Resolution · 4× · 4K

Bring every pixel into focus.

Drop a low-resolution image and watch it sharpen into a clean, high-resolution result, decoded by NVIDIA's brand-new PiD pixel-diffusion model with a resilient engine that always returns a result.

Drop an image to enhance or browse · PNG, JPG, or WebP · or paste with ⌘V

Initializing engine…

Your image is processed in-memory and never stored. It is discarded the moment you download or reset.

Free AI Image Upscaler

Upscaler AI is a free online AI image upscaler. Upload a low resolution or blurry photo and it increases the image resolution up to 4K with sharp, natural detail. The Fast and High Detail engines run entirely in your browser, while the NVIDIA PiD engine runs a state-of-the-art diffusion super-resolution model on a GPU. No signup, no watermark, and your image is never stored.

Is this AI image upscaler free?: Yes. The browser engines are completely free, need no account, and never leave your device.
How much can it upscale an image?: Up to 4x, reaching roughly 4K resolution depending on the input image.
Are my images uploaded or stored anywhere?: The browser engines process locally. The NVIDIA PiD engine processes on a GPU and deletes every file immediately, so nothing is ever stored.
What AI model powers the upscaling?: NVIDIA PiD, a brand-new pixel-diffusion super-resolution model, with Real-ESRGAN as the in-browser engine.