Color Blindness Simulator
Upload any image and see how it appears to people with different types of color blindness. Test protanopia, deuteranopia, tritanopia, and more — completely free, no registration required.
Drop your image here
Supports JPG, PNG, WebP, GIF, SVG, and more
Frequently Asked Questions
A Color Blindness Simulator transforms images to show how they appear to people with various types of color vision deficiency. It helps designers and developers create more accessible content.
This tool simulates 7 types: Protanopia and Protanomaly (red deficiency), Deuteranopia and Deuteranomaly (green deficiency), Tritanopia and Tritanomaly (blue deficiency), and Achromatopsia (total color blindness/grayscale).
By viewing your designs through different color blindness filters, you can ensure your color choices are accessible to all users. About 8% of men and 0.5% of women have some form of color vision deficiency.
Yes, completely free with no registration. All processing happens in your browser — your images are never uploaded to any server.