The age calculator tool is a simple and user-friendly web application built with HTML, CSS, and JS. It allows users to easily calculate their age just by entering their birth date. The tool quickly calculates the user's age in years and displays the result on the screen. This tool can be easily integrated into any web application to provide users with a convenient and reliable way to calculate their age. With its responsive design and intuitive interface, the age calculator tool is an essential addition to any web development project.