Colorblinding
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This extension has been flagged as potentially malicious.
Extension Delisted
This extension is no longer available in the official store. Delisted on 2025-09-17.
This extension simulates the website as a color vision impaired person would see.
This extension simulates the website as a color vision impaired person would see.
Colorbldingin can simulate:
Red-Blind / Protanopia
Green-Blind / Deuteranopia
Blue-Blind / Tritanopia
Red-Weak / Protanomaly
Green-Weak / Deuteranomaly
Blue-Weak / Tritanomaly
Monochromacy / Achromatopsia
Blue Cone Monochromacy
Additionally, it's an open-source project hosted at https://github.com/LeonardoCardoso/Colorblinding
For more information, visit http://lab.leocardz.com/colorblinding
Latest reviews
ANDA BIEN - Hice una prueba con un amigo que es daltónico, y vió muy parecida la imagen normal y otra con uno de los filtros. Recomendable.
U Can make a application?
Works Great, thanks
I DON'T THINK IT'S CORRECT I'm red-weak colourblind. A simulation of such colourblindness should make red darker, and this doesn't. In fact it makes it lighter. I've checked it by looking at SMPTE colour bars and a colour picker, and I think it's adjusting for my colour vision (as far as is possible) rather than simulating it for normal visioned people. I think the green options may be OK.
This extension is not supported anymore. This project is fully abandoned by the developer, see GitHub: https://github.com/LeonardoCardoso/Colorblinding I would like to warn everyone, this extension has some bugs and all have been fixed on GitHub only the developer doesn't want to push an update. My advice would be to use something else.
It's good
Working in 2019, on a Mac in Chrome - I don't see any issues others mention with runaway processor usage or shifting of objects (I suspect it was more likely triggering earlier verisons of Chrome that were known for their high cpu usage). I'm quite happy with its ability to demonstrate colorblind issues - full thumbs up!
Doesn't work. Uncaught ReferenceError: execute is not defined
Thanks for your effort on this. Helps a lot while designing websites.
Best tool, Thanks you so much!!!
Does not work
Amazing. Nice work!
No está mal, la calidad al ver videos disminuye un poco, pero está bien.
I depend on this nifty tool daily to ensure my interactive mapping applications meet all audiences color spectrum's. Highly recommended!
los cambios no son apreciables
Muito bom...recomendo a todos...
The CPU usage goes through the roof even when functionality is disabled. What does it do really apart from what's written? Or is it just bad code?
Simulates colorblindness effectively, but also causes elements to move around on some pages.
I like it, but I'd prefer to have the options sorted by most common color blindness.
Works great on most websites but doesn't seem to work on local html files, no good for developing unless its all ready hosted.
Although this extension does appear to simulate color vision problems, I wanted to give a caution to others. As noted by other reviewers, Colorblinding has high CPU use, the amount of memory it uses is very high (several hundred MB) and fluctuates rapidly, and it communicates over the network a good deal. This occurs even when the simulation is disabled. I cannot fathom any reason why it should do any of these things, and I am suspicious of it. The project is open source, so I am hoping to conduct some further research on why it does these things, particularly why it makes outgoing network connections.
Does what it says on the label. However, the CPU usage went straight up even if I did not set colorblind mode on any of my tabs. On a Mac, Chrome 46.0.2490.71.
very interesting! thanks for making x
