Is Express a backend framework?

Express is a popular and powerful web application framework for Node.js, which is used by a variety of developers to create dynamic websites and applications. It is a backend framework because it provides all of the necessary tools and libraries for developers to easily build applications. Furthermore, since Express is written in JavaScript, an interpreted language, it is simple to develop applications without needing to compile code. Additionally, it is lightweight and does not require a lot of memory or processing power to run. Moreover, Express is also a web framework, allowing developers to create websites and applications that are available on any browser. Overall, it is an ideal choice for developers who wish to create dynamic websites and applications.