7 Free and Open Source Java Application Servers

7 Free and Open Source Java Application Servers

Java is a high level, class-based, object-oriented development language used by over 9 million developers throughout the world. It’s incredibly popular for its versatility, as it is platform-independent. This means that it can run on any type of computer that has a Java Runtime Environment (JRE) installed.

What is a Java application server?

A Java application server is a server specifically designed for Java applications. It provides developers with everything they need to design, build and deploy Java apps with ease. A Java application hosting server is a three-tier application, which includes a graphical interface server, an application/business logic server and a database server.

When would you use a Java application server?

For corporate Java application deployment, there are several advantages to using a Java application server. This system allows you to update and upgrade the application and then deploy it to all users at once, reducing the risk of compatibility issues. It also makes it easier to manage technical support when everything is managed from a central location.

An application server also makes it easier to manage users and privileges as it removes the need to maintain user-management systems. It’s also a scalable solution that can grow with your business. In short, a Java application server makes it easier to build, deploy and manage applications for growing businesses.

7 free open source Java applications

There are many free Java application servers available, but not all are created equal. Finding the right server application server will all depend on your current business needs and your plans for the future. Here are 7 of the best free and open-source Java application servers that will enable you to quickly deploy Java apps.


GlassFish is an open-source application server that provides a Java EE environment. It was originally developed by Sun Microsystems and then acquired by Oracle Corporation in 2010. GlassFish is the reference implementation of the Java EE specification and it is available under the GPLv2 license.

GlassFish provides a web container and an application server for developing and deploying Java EE applications. It also provides a complete stack of services including clustering, load balancing, failover, management, monitoring, and more.


JBoss is a Java-based application server. It is open-source and free to use. JBoss has been around for over 20 years and it is used by many companies, including Netflix, Red Hat, and Goldman Sachs. JBoss provides benefits to its users in the form of an easy-to-use interface, scalability, and security. It also has a large community of developers that contribute to the project.


Wildfly is a Java EE application server. It is an open-source application server that can be used to deploy and run Java EE applications on a single machine or in a clustered environment. It is an incredibly powerful but lightweight application server that offers a modular approach to development.

Apache Tomcat

Apache Tomcat is an open-source web server that supports Java Servlet and JavaServer Pages (JSP) technologies. It was originally designed to provide a lightweight, efficient, and easy to configure web server for small or medium-size projects. Tomcat is written in pure Java and has no other dependencies, so it can be easily included in any project.

Apache TomEE

Apache TomEE is a Java EE 7 certified open-source implementation of the Java Platform, Enterprise Edition. It is a pure Java EE 7 implementation without any proprietary code.

Apache TomEE provides an alternative to the Oracle JRockit and IBM WebSphere implementations of the Java Platform, Enterprise Edition. This completely free and open-source server is capable of delivering Servlets, JSP, JSF, JTA, JPA, CDI, Bean Validation, and EJB Lite.


Geronimo Java is a framework that is used to develop and deploy Java applications. It provides a set of libraries and tools that are used to build, package, deploy, and run Java applications.

The benefits of Geronimo Java are that it provides a set of libraries and tools that are used to build, package, deploy, and run Java applications. It can also be deployed on any operating system. And finally, it has a small memory footprint which makes it suitable for running on embedded devices.


Jetty is a web server that is used to serve web pages and other content. It is often used in conjunction with Java servlets and JavaServer Pages (JSP). Jetty provides a lightweight alternative to other web servers, such as Apache HTTP Server or Microsoft IIS. Jetty has been designed from the ground up to be fast and lightweight, so it can be run on embedded devices like routers or firewalls without consuming too many system resources.

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