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Color Oracle

Free color blindness simulator for any screen.

Color Oracle screenshot

Color Oracle is a free, system-level color blindness simulator for Mac, Windows, and Linux. It applies a real-time color filter to your entire screen, no screenshots needed. Simulates deuteranopia, protanopia, and tritanopia to test designs in context.

#color-blindness#simulator#desktop-app#free

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Added May 1, 2026
Verified May 1, 2026
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