HomeColor Blindness Simulator

Color Blindness Simulator

Upload an image to simulate protanopia, deuteranopia, tritanopia and more for accessibility and color review

Upload Image

Click or drag an image here

Supports JPG/PNG/WebP and common formats, up to 50MB (local processing)

Color Vision Types

Preview

Normal Vision

Upload an image to preview

Type Notes

Protanopia

Reduced or missing red sensitivity. Red-green separation becomes harder and reds may appear darker.

Deuteranopia

Reduced or missing green sensitivity. Red-green confusion is common in many UI palettes and charts.

Tritanopia

Reduced or missing blue sensitivity. Blue-yellow discrimination can be affected. It is relatively rare.

Achromatopsia

Little to no color perception. Visual cues rely mostly on luminance and contrast.

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Documentation

Overview

Color Blindness Simulator transforms images under different vision deficiency models to assess accessibility and visual clarity.

Core Features

  • Multiple color-vision deficiency simulation types.
  • Upload image or load sample image.
  • Real-time preview with quick type switching.
  • Download simulated output.

How To Use

  1. Upload an image or load sample.
  2. Select a simulation type.
  3. Preview and download the result.

Privacy

Simulation runs locally in your browser. No image data is uploaded.

Data is processed locally in your browser by default and will not be uploaded to any server. Upload will be clearly indicated if required.

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