Color Blindness Simulator

ColorBlindSimulator.app is a free, browser-based tool designed to help anyone—from designers and developers to educators and curious explorers—understand how the world appears through the eyes of those with color vision deficiencies.

Key Features:

Simulator Images – Upload any image or artwork and instantly view how it appears under different types of color blindness (Protanopia, Deuteranopia, Tritanopia, and more). Effortlessly test your designs and visuals for accessibility.

Live Webcam Mode – See your surroundings in real time with color blindness filters applied. A fun, interactive way to gain firsthand insight into how color-blind individuals perceive the world.

Palette Checker – Experiment with your color palettes and ensure they remain distinguishable for all users. Quickly detect and adjust potentially confusing color combinations.

Website Checker – Test any website URL to preview its pages with realistic color blindness simulations. Instantly catch design or accessibility issues before they reach a broader audience.

Ishihara Test – Includes built-in color vision screening using the classic Ishihara plates. A helpful resource to self-assess whether someone may have a color vision deficiency.

Whether you're designing user interfaces, developing accessible content, or simply raising awareness, ColorBlindSimulator.app offers fast, accurate, and easy-to-use tools to promote inclusive design. Dive in and experience how your visuals look to everyone—because accessibility starts with understanding.