Color Blindness Simulator - Free Online Tool | PivaBox

Simulate how images appear to people with different types of color vision deficiency

How to Use Color Blindness Simulator

1. Upload an image by dragging and dropping or clicking the upload area
2. Select a color blindness type: Protanopia (red-blind), Deuteranopia (green-blind), Tritanopia (blue-blind), or Achromatopsia (total)
3. View the original and simulated images side by side to understand how color perception differs

Frequently Asked Questions

Is Color Blindness Simulator free?

Yes, PivaBox Color Blindness Simulator is completely free. All processing is done locally in your browser.

Are my uploaded images sent to a server?

No. All image processing happens entirely in your browser using the Canvas API. Your images never leave your device.

How accurate is the simulation?

The simulation uses established color transformation matrices based on color vision deficiency research. It provides a good approximation of how people with different types of color blindness perceive images, though individual experiences may vary.