Colorblind Filter & Simulator

See color a new way. Colorblind Filter & Simulator is an accessibility and education tool that lets you both experience color vision deficiency and correct for it with a live camera filter — no guesswork, no labels, just color you can finally tell apart.

THE SIMULATOR

Curious how a photo, a chart, or an Ishihara-style plate looks to someone with color vision deficiency? Switch between protanopia (red-weak), deuteranopia (green-weak) and tritanopia (blue-weak) and watch any image or your live camera shift in real time. It's the quickest way to understand what colors blend together for millions of people — perfect for building empathy and better design.

THE DALTONIZE FILTER

Flip on the daltonize filter and the app recolors the world through your camera, shifting confusing reds and greens into tones you can distinguish. Tell ripe fruit from unripe, read a colored subway map, match clothes, or pick out a wire — all with a filter tuned to your type of color vision.

WHAT YOU GET

• Live camera simulator for protan, deutan and tritan color vision.
• Daltonize correction filter that recolors the live view to separate confusing colors.
• Simulate any photo from your library, side by side with the original.
• Adjustable filter strength for the look that works for you.
• Clean, fast interface with no account required.

WHO IT'S FOR

People with color vision deficiency who want everyday colors to be easier to separate, designers and developers checking that their work is accessible, teachers and students exploring how color vision works, and anyone simply curious about how others see color.

A NOTE

This is an educational and accessibility tool, not a medical device. It simulates and filters color and does not assess anyone's vision. If you have concerns about your eyesight, please see an eye-care professional.