Free image tool
Colour Blindness Simulator
Preview an image through protanopia, deuteranopia, or tritanopia color models.
Use Colour Blindness Simulator
Drop files here or choose from your device
Files stay in your browserWhy use Colour Blindness Simulator?
Made for this task
Preview an image through protanopia, deuteranopia, or tritanopia color models.
Clear result
Download the processed file or copy the result shown on the page.
Private processing
Your file stays in your browser while you work.
No account
Use the tool without signing in.
Frequently asked questions
What does Colour Blindness Simulator do?
Preview an image through protanopia, deuteranopia, or tritanopia color models.
Do I need to install anything to use Colour Blindness Simulator?
No. Open this page in a supported desktop browser and use the tool here.
Does Colour Blindness Simulator upload my file?
No. The file is processed in your browser. Some tools download a processing engine on first use, but your file is not sent with it.
Can I use Colour Blindness Simulator for free?
Yes. This tool is free to use without an account.
What is Colour Blindness Simulator?
Preview an image through protanopia, deuteranopia, or tritanopia color models.
How to use Colour Blindness Simulator
- Choose or drop your file.
- Set any available options.
- Run Colour Blindness Simulator in your browser.
- Download the result or copy text shown on the page.
Image file and Edited download
| Feature | Image file | Edited download |
|---|---|---|
| Purpose | Keep the original image file | Create edited download |
| Where processing happens | Your browser | Your browser |
| Result | Original file stays on your device | Download or copy the new result |
When to use Colour Blindness Simulator
Preview an image through protanopia, deuteranopia, or tritanopia color models. Keep your original file so you can make a different version later.