JavaServer Faces or JSF is a Java-based web application framework to develop web-based user interfaces.
JSF is a standardized technology in a specification.
JavaServer Faces (JSF) is a MVC web framework we can use to create user interfaces for web-based applications.
JSF connects UI widgets with data sources and server-side event handlers. JSF enables the reuse and extension of the existing standard UI components.
The JSF specification defines a set of standard UI components and provides an Application Programming Interface (API) for web-based application development.
JSF makes Web application development easier by providing reusable UI components.
We can easily do data transfer between UI components. With JSF we can create custom UI components.