What is ALT Text?

ALT Text means Alternative Text and refers to the value of the HTML attribute ALT that is often found within IMG elements (images) and within other HTML elements that don’t always load or otherwise aren’t always accessible.

ALT Text exists as a substitute form of information for when images, videos, sound files, Flash objects, Java applets and other rich media formats can’t be seen or interpreted by the user. It’s there in order to help you understand the meaning of the content that you’re unable to see or interpret.