Color Blindness Simulator
Image → Simulated View
Simulate Protanopia, Deuteranopia, Tritanopia, and Monochromacy vision on images for UI accessibility auditing.
About this tool
About Color Blindness Simulator
Color Blindness Simulator is a free, browser-based tool that lets you simulate Protanopia, Deuteranopia, Tritanopia, and Monochromacy vision on images for UI accessibility auditing. It supports Image → Simulated View. Everything runs locally on your device, so your files are never uploaded to a server. There's no sign-up, no watermark, and no limit — just open Color Blindness Simulator, add your input, and get results instantly.
How to use Color Blindness Simulator
1
Upload UI Screenshot
Select image or UI mock.
2
Select Vision Mode
Simulate Protanopia, Deuteranopia, Tritanopia, or Monochromacy.
Key features
WCAG Accessibility
Audit color contrast and visual accessibility.
100% Private
Color Blindness Simulator processes your data locally in the browser. Nothing is uploaded, tracked, or stored u2014 your files never leave your device.
Completely Free
Use Color Blindness Simulator as much as you want with no fees, no watermarks, and no hidden limits.
No Installation
Color Blindness Simulator runs in any modern browser. There's nothing to download, install, or configure.
1 / 2
Featured on
