Images tool
Free Color Blindness Simulator
Choose an image to compare its original colors with approximate color-vision simulations.
This is an approximate visual simulation, not a diagnosis or accessibility certification. Your image stays on this device and is not uploaded.
Choose an image or create a sample palette to begin.
About this tool
Free Color Blindness Simulator made simple.
Images are processed only in your browser and are not uploaded. This is an educational approximation, not a diagnosis or an accessibility certification. Images are limited to 10 MB and 4 megapixels to protect browser memory; desktop computers are recommended for larger images.
Common questions
About Free Color Blindness Simulator.
How do I use Color vision simulator?
Choose an image to compare its original colors with approximate color-vision simulations.
Is my data uploaded to a server?
No. This tool runs locally in your browser. Your input is not uploaded.