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User quotes:
I've been looking for something that would show my children and friends just what it's like to be colourblind as, over the years, the constant 'so, what does this look like to you?' has become a bit wearing. Your site did it! Now, though, it seems that I must put up with pity... Ah well, thank you anyway for a great tool.
-G. Wood (one of the rare females)
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Select the type of color vision to simulate:

deutan hats Deuteranope (a form of red/green color deficit)
protan hats Protanope (another form of red/green color deficit)
tritan hats Tritanope (a blue/yellow deficit- very rare)

Image file:


  • Vischeck accepts most common image formats. However, we recommend that you use PNG or JPEG format for uploading large images as these tend to transfer faster.
  • For PowerPoint slides, you can save all your slides as PNG images with "Save As..." and run Vischeck on each slide.
  • If you have many images to process, consider downloading Vischeck to run on your own computer.)
  • Uploading a large file may take a while - please be patient!

Privacy policy. Contact: Last modified 2014-Feb-04 23:11 GMT.