Browse free open source Java Application Servers and projects below. Use the toggles on the left to filter open source Java Application Servers by OS, license, language, programming language, and project status.

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • Payments you can rely on to run smarter. Icon
    Payments you can rely on to run smarter.

    Never miss a sale. Square payment processing serves customers better with tools and integrations that make work more efficient.

    Accept payments at your counter or on the go. It’s easy to get started. Try the Square POS app on your phone or pick from a range of hardworking hardware.
    Learn More
  • 1
    SAP NetWeaver Server Adapter for Eclipse

    SAP NetWeaver Server Adapter for Eclipse

    Integrates Eclipse with the SAP NetWeaver Application Server

    Integrates Eclipse with the SAP NetWeaver Application Server.
    Leader badge
    Downloads: 333,805 This Week
    Last Update:
    See Project
  • 2
    Jenkins

    Jenkins

    Build great things at any scale

    Jenkins is the leading open-source automation server that allows you to build great things at any scale. Jenkins is built with Java and provides hundreds of plugins for building, deploying and automating virtually anything, allowing you to focus on more important things. Jenkins is often used for building projects, running tests, analyzing static code and deployment. Whatever is done repetitively, Jenkins can most likely execute and execute well, saving you time and optimizing your development process. Jenkins is easy to install, easy to configure and extensible via its plugin architecture. Start building smart with Jenkins!
    Downloads: 9 This Week
    Last Update:
    See Project
  • 3
    Spring Cloud Config Server

    Spring Cloud Config Server

    External configuration (server and client) for Spring Cloud

    Spring Cloud Config provides server-side and client-side support for externalized configuration in a distributed system. With the Config Server, you have a central place to manage external properties for applications across all environments. The concepts on both client and server map identically to the Spring Environment and PropertySource abstractions, so they fit very well with Spring applications but can be used with any application running in any language. As an application moves through the deployment pipeline from dev to test and into production, you can manage the configuration between those environments and be certain that applications have everything they need to run when they migrate. The default implementation of the server storage backend uses git, so it easily supports labelled versions of configuration environments as well as being accessible to a wide range of tooling for managing the content. It is easy to add alternative implementations.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 4
    Skript

    Skript

    Skript is a Bukkit plugin which allows server admins

    Skript is (surprise, surprise) a scripting plugin for the Bukkit platform. It is easy to use for simple tasks, but you can also create really complex things with it. The syntax of Skript is close to English, but it is still not magic. While you might succeed with experimentation for simple tasks, for anything more complex you will need some guidance. You will find all supported features of the plugin here, along with some useful examples. We don't have tutorials yet, but you can find good ones using whatever search engine you prefer. Skript requires Spigot to work. You heard it right, CraftBukkit does not work. Paper, which is a fork of Spigot, is recommended; it is required for some parts of Skript to be available. Skript supports only the latest patch versions of Minecraft 1.9+. For example, this means that 1.16.5 is supported, but 1.16.4 is not. Testing with all old patch versions is not feasible for us.
    Downloads: 4 This Week
    Last Update:
    See Project
  • Free and Open Source HR Software Icon
    Free and Open Source HR Software

    OrangeHRM provides a world-class HRIS experience and offers everything you and your team need to be that HR hero you know that you are.

    Give your HR team the tools they need to streamline administrative tasks, support employees, and make informed decisions with the OrangeHRM free and open source HR software.
    Learn More
  • 5
    Netty-socketio

    Netty-socketio

    Socket.IO server implemented on Java

    This project is an open-source Java implementation of Socket.IO server. Based on Netty server framework. Supports 0.7...0.9.16 (netty-socketio 1.6.6) and 1.0+ (netty-socketio latest version) version of Socket.IO-client. Supports distributed broadcast across netty-socketio nodes (Redisson, Hazelcast). Supports OSGi, supports Spring, lock-free and thread-safe implementation, and declarative handler configuration via annotations. YourKit is kindly supporting this open source project with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. CentOS, 1 CPU, 4GB RAM runned on VM, CPU 10%, Memory 15%, 6000 xhr-long polling sessions or 15000 websockets sessions, 4000 messages per second.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    Application Server to make Java Components available for AS/400 RPG programs, runs on as400, i5, iSeries, System i or any other java platform. Packaged with ArdGate to access any JDBC database using all native SQL interfaces from AS/400.
    Leader badge
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    Imixs Workflow

    Imixs Workflow

    Imixs Workflow - the open source business process management

    Manage Complexity of Your Business Process... Imixs-Workflow is the open source solution for human-centric business process management. This means supporting human skills, activities and collaboration in a model driven architecture. The Imixs-Workflow engine protects and securely distributes your business data based on the BPMN 2.0 standard. http://www.imixs.org
    Downloads: 2 This Week
    Last Update:
    See Project
  • 8
    Graph Database

    Graph Database

    A robust, reliable, user-friendly, and high-performance Graph Database

    This is an academic project to build a graph database, supporting multiple users, with fully functioned data query, data manipulation and indexing mechanism. It is running in a distributed client-server mode. This project is assigned to final-year project from group IT121B, Bachelor of Computing, University of Wollongong.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    @Configured is a (mini) rule's driven dependency injection framework. Homepage: http://configured.sourceforge.net
    Downloads: 0 This Week
    Last Update:
    See Project
  • Rent Manager Software Icon
    Rent Manager Software

    Landlords, multi-family homes, manufactured home communities, single family homes, associations, commercial properties and mixed portfolios.

    Rent Manager is award-winning property management software built for residential, commercial, and short-term-stay portfolios of any size. The program’s fully customizable features include a double-entry accounting system, maintenance management/scheduling, marketing integration, mobile applications, more than 450 insightful reports, and an API that integrates with the best PropTech providers on the market.
    Learn More
  • 10
    This is an ATG module which provides a user interface to create and modify SQL repository definitions. It includes functionality to create the repository definition XML file, as well as the corresponding DDL file for table definitions.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    The AWS Toolkit for Eclipse is a plug-in for the Eclipse Java IDE that makes it easier for developers to develop, deploy, and debug Java applications using Amazon Web Services.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    A knowledgment management system written in Java under JBoss 4.2.3 Server, with richfaces 3.3.0BETA4. Including fileconversion from html to pdf and rich:editor component without special syntaxing.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    Ambient Composite Engine, a web-based framework for writing composite software, submitted by WebactiveLabs.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    This project makes transferring files from server to the client machine through a applet, this project arises in order to print reports directly to the client machine without having to open an external application
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Log for auditing is part of business logic. For example, you want record the resources that a user visited. You know what to log at the development time. AuditLog is just for that. It is a plug-in of LimpidLog. See at http://www.acelet.com/auditlog/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Service for automatic execution of arbitrary Groovy scripts by scheduler (Quartz) in context of JBoss Application Server + Quartz GUI
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    BEEing (old version)
    BEEing is a Social Network Platform builded on a "wiki" like philosophy. Result is a flexible and powerfull CMS that enable you to design Web 2.0 and Enterprise 2.0 applications. You can use BEEing to quickly build any kind of Web applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    BLoMo generates hibernate models, DTO layer and adds improved security, validation and generic access to web applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Java library to do dependency injection like Java EE 5 on unmanaged beans. It can inject local or remote Session beans (@EJB), anything bound to JNDI registry like JDBC Data sources or JMS Destinations (@Resource), JPA Entity Managers (@PersistenceContex
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Bluewave is an object oriented database and application server that provides a neat intuitive way to store data. Bluewave also features a powerful client and server API.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Blunder is an automated tool for analyzing chained exceptions in Java. It's usefull for classify, generate a customized error message and a list for possible solutions.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    BuildProcess is a set of Java tools to automatically deploy and manage application server. Each BuildProcess module is setup using a XML file. With BuildProcess, you can periodically deploy a J2EE application using JMX, delete old files, etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    CGI Node 2.0 is an open source solution that helps you meet your data exchange, collaboration and decision making needs. CGI Node 2.0 represents the next generation of data exchange capabilities for your business.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Servlet container extensions that help web developers write full featured Java web applications.
    Downloads: 0 This Week
    Last Update:
    See Project