Frontend frameworks are a set of tools that provide the structure for frontend web development. They are used to build user interfaces quickly and efficiently. We have three main frontend frameworks: Angular, React, and Vue.js. These frameworks are built on different principles, and each has its own pros and cons. Out of all the three, React is the best and more usable. It is used for creating interactive user interfaces. It provides a way to create components that can be reused and managed in an efficient manner.