Nest.js is a powerful JavaScript framework that enables developers to create modern, scalable, and high-performance server-side applications. It's built on top of Node.js, and provides a great platform for developers to create efficient and robust applications. With Nest.js, developers can easily write code that can be deployed across a variety of platforms, and can leverage the open source ecosystem of packages available for Node.js. It also provides a great way for developers to structure their code, allowing them to easily create large-scale applications. Nest.js is a great choice for developers who need a powerful framework to create enterprise-level applications that will run reliably and efficiently.