Free Color Blind Simulator
Color blindness simulator · upload image or URL · 4 CVD types · WCAG contrast check
Free ToolNo signup · processed locally
Upload a design or enter a URL
See how your work looks to people with deuteranopia, protanopia, tritanopia, or achromatopsia. Nothing is sent to a server all processing is done in your browser.
Drop your image here, or click to browse
PNG · JPG · GIF · WebP · SVG up to 10 MB
Pro Tips
- Use high-resolution images (800px+) for clearer results
- Focus on UI elements that rely on color to convey information
- Charts, status indicators, and CTAs are the highest-risk areas
- 8% of men and 0.5% of women have some form of CVD
Color Blindness Simulator for Images & Websites
Upload PNG, JPG, SVG, or GIF—or enter a live URL—to preview designs under protanopia, deuteranopia, tritanopia, and achromatopsia.
Also try: free color blind test, WCAG contrast checker, Figma color blind plugin.