ColorBlindSimulator.app is a free online tool that allows users to simulate different types of color blindness and test how people with vision deficiencies perceive colors. Whether you are a designer, developer, educator, or just curious, our platform makes it easy to check accessibility, ensure inclusive design, and raise awareness about visual impairments.

With fast performance and a simple interface, the simulator helps you upload images, apply real-world color vision filters, and instantly preview results. It also offers educational resources and guides about color blindness, making it useful for professionals and individuals alike.

Our mission is to promote accessibility and inclusivity on the web by giving everyone the tools to understand and design for people with color vision deficiencies.