WildFly is the open source implementation of the Jakarta EE suite of services. It comprises a set of offerings for enterprise customers who are looking for preconfigured profiles of JBoss Enterprise Middleware components that have been tested and certified together to provide an integrated experience. It's easy-to-use server architecture and high flexibility makes WildFly the ideal choice for users just starting out with Jakarta EE and Microprofile API, as well as senior architects looking for a customizable middleware platform.
WildFly is free and open-source software, subject to the requirements of the GNU Lesser General Public License (LGPL), version 2.1.