Liferay is an open source enterprise portal. It incorporates a Content Management System, a portlet system, development tools, and localization options for 22 languages, all under the open source MIT license. Being an enterprise portal is a single point of access that integrates information, people, and processes across a large organization.

The Liferay Portal is divided into three products: the Liferay portal platform; Liferay Journal, a content management system; and the Liferay Collaboration Suite, which covers blogs, instant messaging, and message boards.

Liferay works off the Java Enterprise platform and Apache. Its portlet system allows developers to create extensions and plugins using most major languages, including Java, PHP, and Ruby.