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This site is really cool!! I sent it out to folks I know so they can see what the difference is for themselves. I've known colorblind people, but just never realized what it was they weren't seeing. This is a great help.
-Lora H
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Try Daltonize on Your Image Files

Sorry- the Daltonize ImageEngine appears to be down at the moment. Please try again later.


  • Daltonize 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 Daltonize on each slide.
  • Uploading a large file may take a while - please be patient!

Privacy policy. Contact: Last modified 2009-Nov-01 18:38 GMT.