It is specifically here that the alt text accessibility for images performs its important task. Alt text (short for alternative text), is a hidden descriptive word put into the HTML code of an image on a webpage. It's like an interpreter: it speaks for the image, telling its viewers what the image depicts and how it relates to the broader context. We will now discuss in-depth the importance of alt text for images on websites and how it can help to improve site accessibility, which is beneficial for everyone.