jarvisbox

Color Blind Simulator

Upload an image and see how it appears to people with deuteranopia, protanopia, or tritanopia — 100% client-side.

100% client-side · no upload
Settings

Load a file to begin.

How to use

  1. Click Upload Image and select any image from your device.
  2. Choose a color vision deficiency type from the dropdown.
  3. Click Simulate to generate the filtered image.
  4. Download the simulated PNG to compare with the original.

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Frequently Asked Questions

What types of color blindness does this tool simulate?
Deuteranopia (green-blind, ~6% of men), protanopia (red-blind, ~2% of men), and tritanopia (blue-blind, very rare). Combined, about 8% of men and 0.5% of women have some form of color vision deficiency.
Is my image uploaded anywhere?
No. The simulator applies color matrix transforms entirely inside your browser using the Canvas API. Your images never leave your device.
Does it work on mobile?
Yes. The tool works in Safari and Chrome on iOS and Android. Use the file picker to select an image from your camera roll.

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