Jami is a popular open-source framework designed for building web applications using the JavaScript programming language. It provides a simple and flexible way to create web servers and APIs, making it easier for developers to manage routes, middleware, and requests. Jami is often used in conjunction with other tools and libraries in the Node.js ecosystem. The framework is known for its lightweight nature and high performance, allowing developers to create fast and efficient applications. Jami supports various features such as template rendering, session management, and error handling, making it a versatile choice for both small and large projects in the web development field.