Sim Daltonism - From the perspective of a color blind person, some colors are impossible to distinguish.
Dollar A Day - Automatically donate $1 a day to featured nonprofits.
Coblis - If you are not suffering from a color vision deficiency it is very hard to imagine how it looks...
TreeClicks - Plant trees for free by shopping online 🌲🌐
Colorblind Web Page Filter - Enter a URL, and this tool will render it as someone with color blindness will see it.
Bourgad - Each new tab becomes a donation ✨🌍