Color Blindness Simulator

Simulate color blindness types on images

🔒 Files never leave your browser

Drop an image here or click Upload Image

Supports JPEG, PNG, WebP, BMP, GIF

Files never leave your browser. All processing happens locally on your device.

How to Use Color Blindness Simulator

Upload image

Upload an image to test.

Select type

Choose a color blindness type.

Compare

See original vs simulated side by side.

Why Choose AllTools Color Blindness Simulator?

  • ✓ 100% free, no account needed
  • ✓ Protanopia (no red)
  • ✓ Deuteranopia (no green)
  • ✓ Tritanopia (no blue)
  • ✓ Achromatopsia
  • ✓ No data stored or transmitted

Why Use This Tool

  • ★ All processing happens in your browser — nothing is uploaded
  • ★ Completely free with no usage limits
  • ★ No account or registration required
  • ★ Instant results with zero latency
  • ★ Works on any device with a modern browser

Related Resources

Check contrast → Pick colors → Convert to grayscale →

Frequently Asked Questions

How does it work? ▼
Applies color transformation matrices to each pixel to simulate different types of color vision deficiency.
Is there a file size limit? ▼
No strict limit. Processing happens in your browser, so capacity depends on your device memory. Most files work smoothly.
Which browsers are supported? ▼
All modern browsers including Chrome, Firefox, Safari, Edge, and Opera on both desktop and mobile.
Can I use this offline? ▼
Yes. Once the page is loaded, the tool works without an internet connection since all processing is local.
Is my data secure? ▼
Yes. Your data never leaves your browser. Nothing is stored on or transmitted to any server.
Does this work on mobile? ▼
Yes. All AllTools tools are fully responsive and work on phones and tablets.

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