Color Blindness Simulator applies a color vision deficiency model to an image so you can check whether a design still reads for people who see color differently.
It runs in the page. The image is drawn to a canvas in your browser and never uploaded.
Protanopia, deuteranopia, and tritanopia, their milder anomalous forms, and full achromatopsia.
It uses a widely cited linear model. It is a good guide for design review, not a clinical test.
Yes. The compare view has a Save PNG option for the current result.
No. It is processed on a canvas in your browser.