A method of deriving audio content from visual content can include modifying a visual markup language document requested by a client computer system to specify a control for generating an audio markup language document version of the visual markup language document. The modified visual markup language document can be provided to the client computer system. Responsive to a selection of the control, an audio markup language document version of the visual markup language document can be generated. The audio markup language document can be saved for subsequent presentation through an audio interface.