A web application is a software program that runs on a web server and can be accessed through a web browser, like Google Chrome or Firefox. Unlike traditional software that you install on your computer, web applications allow users to interact with them online, making them accessible from any device with internet access. Examples include online banking, social media platforms, and e-commerce websites. These applications often use technologies like HTML, CSS, and JavaScript to create dynamic and interactive experiences. Users can perform various tasks, such as sending messages or making purchases, without needing to download or install anything. This convenience is one reason why web applications have become so popular.