AI image upscaler

Upscale images 2× or 4× while keeping them sharp, using Real-ESRGAN.

This tool runs entirely in your browser — no data is uploaded to our servers.

Was this tool helpful?

Enlarge small or low-resolution images 2× or 4× without the blur. AI mode uses the Real-ESRGAN model to rebuild edges and detail, running entirely in your browser and using your GPU when available. Preview part of the image before the full upscale.

How to use it

  1. Choose one or more images.
  2. Pick the factor (2× or 4×) and mode (AI or fast), and try “Preview AI”.
  3. Click “Upscale images” and download.

Features

  • Real-ESRGAN to reconstruct detail.
  • Drag-to-compare before/after.
  • Transparent PNG support.
  • Fast mode for instant results.

Privacy and security

“AI image upscaler” runs entirely in your browser: your images and files are never uploaded and no copy is kept. Free, with no sign-up.

Tip: Great for preparing small artwork for print; images up to 1500 px process faster.

Frequently asked questions

How long does it take?

Seconds to minutes depending on size and your device; a GPU speeds it up a lot.

Is my image uploaded?

No, the model downloads once and runs locally.