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- Free
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- Works on any device
Create a QR code for a link, Wi-Fi, WhatsApp, contact and more, or read one from a photo.
- Free
- No sign-up
- Works on any device
Fill in the details to see your QR code.
PNG for phones, chats and websites. SVG and PDF stay sharp at any size, which is best for printing. Tip: point your phone camera at the preview to test it.
3. Style (optional): colors, dots, logo
Choose a photo or screenshot or drag it here
Works with photos of printed codes, screenshots and image files.
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Color blindness simulator
See an image or your colors the way people with color blindness do.
- Free
- No sign-up
- Works on any device
About Color blindness simulator
Upload an image or enter colors to preview how they look with protanopia, deuteranopia, tritanopia or complete color blindness. About 8 percent of men have some red-green deficiency. Use it to check charts, maps and interfaces that rely on color alone to carry meaning.
How to use Color blindness simulator
- Add an image or enter your colors.
- Choose a type of color blindness, such as red-green.
- Compare the simulated view with the original.
Why use this tool?
- Private: everything happens in your browser. Nothing you enter is uploaded.
- Free, with no sign-up, no watermark and no limit on how often you use it.
- Works on phones, tablets and computers: Android, iPhone, Windows, Mac and Linux. Nothing to install.
- Free to embed on your own website, with a ready-made code to copy.
- Available in 10 languages.
Also known as
Frequently asked questions
How common is color blindness?
Around 1 in 12 men and 1 in 200 women, most often a red-green deficiency. Do not use color alone to mark status.
Which type should I test first?
Test red-green types first, since they are the most common kinds. Then check the blue-yellow and full color vision types if your audience is wide.
Is the simulation exact for every person?
No, it is an approximation. Severity varies between people, so use it to spot problem areas, and add labels, patterns or icons instead of relying on color alone.
Is Color blindness simulator free?
Yes. Color blindness simulator on Toolipedia is free to use, with no sign-up and no watermark.
Is it safe to use?
Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.
Does it work on my phone?
Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.
Do I need an account?
No. Just open the page and use the tool. There's no sign-up and no email needed.
Can I put Color blindness simulator on my own website?
Yes. Use the Embed on your site button under the tool to copy a short piece of code and paste it into your page. It is free, needs no account, and the tool keeps working inside your page.