PrimeFaces is an open-source user interface (UI) component library for JavaServer Faces-based applications, created by Turkish company PrimeTek Informatics.

[2] The initial development of PrimeFaces was started in late 2008.

[3] Predecessor of PrimeFaces is the YUI4JSF library,[4] a set of JSF components based on YUI JavaScript library.

YUI4JSF got cancelled [5] in favor of PrimeFaces in early 2009.

Since its release, PrimeFaces has been strongly supported by Oracle, particularly within the NetBeans world.