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NEW: Test our Firefox extension.
Open images in Colorblinds.org with a simple right click. Install Extension


This online tool helps to solve two problems for people with colorblindness. It enables colorblind people to better see outlines on an image and to determine the hue and the name of a color. Read more how it works in the about section or just give it a try and upload an image.

Upload a file:

pdf, jpg, png, gif, tiff / Max. filesize: 2 MB !

Or enter the URL of an image:

Please enter the full URL, including the http:// prefix.

Select your color deficit


Please wait while your file is uploading.
Uploading and processing of your file might take a while.