Development of a full-stack website means developing the front end (User Interface, Client Side, or Visible Side) as well as the back end (Server Side or Hidden Side) of the website. Front-end, backend, and database development are all included in full-stack development. Generally, a full-stack developer knows front-end technology (HTML, CSS, JavaScript, and the front-end frameworks and libraries), back-end technology (PHP, C++, Python, Java, JavaScript, and backend frameworks), databases (Oracle, SQL, MongoDB, etc. ), as well as how to troubleshoot a problem once it has arisen.