Image Tools
Color Blindness Simulator
🔒 Runs in your browser
Simulate how images appear to people with protanopia, deuteranopia, or tritanopia. All processing in-browser.
Uses simplified Dalton colour matrices. Results are approximate — not a clinical simulation. Your image never leaves the browser.
How to Simulate Color Blindness — Free Online Tool (2026)
See how people with color vision deficiency view your images. Upload any image and instantly see protanopia, deuteranopia, and tritanopia simulations — all in your browser, no upload.