This website lets you simulate how an image or web-page appears to a colorblind person, among other things.

Drag and drop image files here

Image file:
That is not an image.

Image URL:  

How to use:

1. Screencap a web-page, application or image with Alt-Printscreen, then paste onto this page with Ctrl-V or ⌘-V How to use:

1. Choose from a set of sample images ,
OR Paste the URL of an image file onto this page ,
OR Drag and drop an image file onto the box above ,
OR Enter the URL of an image file and press Go ,
OR Choose an image file using the file browser button above ,
OR Choose from a set of sample images.

2. Choose a filter from the selector at the top of the page.


You can click and drag the filtered image around with the mouse. Right-click/"Save Image As" to save.
The site works in newer versions of Google Chrome and Mozilla Firefox.