Light weight component library
PrimeFaces comes with a set of features that enables JSF developers to deliver a stunning user experience on the Web. PrimeFaces takes JSF application development to the next level, with more than 150 Ajax-based User-Interface (UI) components, jQuery-integration, a mobile UI Kit, theme support, Ajax Push technology, and widgets. PrimeFaces is lightweight and requires no XML configuration. With its large, active and vibrant community, PrimeFaces is a major library for JSF application development projects.
PrimeFaces: A Pragmatic way of programming
Open-source to Enterprise
PrimeFaces Pro is a commercial support service which offers exclusive features such as quick response, defect patches, customized builds, troubleshooting (using a Remote Desktop connection), conferencing, custom features, and advanced functionality for existing components. The Pro version incorporates the best practices and high coding standards, making it a complete package for your development projects. It also includes support for the PrimePush methods (in collaboration with Atmosphere) at a premium.
Also, PrimeFaces Extensions, a community-driven project, consists of components that are not available in the core project or any JSF UI library. These extensions add vital functionality to PrimeFaces such as extending existing features, converters, utilities such as Maven plug-ins and much more.