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.

  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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  • One Monitoring Tool for IT, OT and Cloud | Free Trial Icon
    One Monitoring Tool for IT, OT and Cloud | Free Trial

    Vendor-agnostic monitoring across on-prem servers, cloud platforms and OT devices, all in one dashboard. No more tool sprawl.

    Modern infrastructure spans data centers, cloud platforms and factory floors, and every blind spot between them is a risk. PRTG supports SNMP, WMI, SSH and other standard protocols to monitor IT, OT and hybrid environments through one customizable dashboard. Build the views your team needs, from network health to application performance, without switching tools. Try PRTG free for 30 days now.
    Try PRTG Free
  • 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.
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    Downloads: 335,992 This Week
    Last Update:
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  • 2
    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: 10 This Week
    Last Update:
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  • 3
    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: 7 This Week
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  • 4
    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: 4 This Week
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  • Build Data Resilience - Take the Assessment Today Icon
    Build Data Resilience - Take the Assessment Today

    Can you recover when it matters most? Take this quick assessment to identify gaps and build greater recovery confidence.

    Is your recovery strategy as strong as you think? Take this quick self-assessment to check your recovery readiness and gain tailored insights. In only 2 minutes, you'll learn where you fall on the recovery readiness scale.
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  • 5
    Glowstone

    Glowstone

    Customizable and compatible open source server for Minecraft

    A fast, customizable and compatible open-source server for Minecraft: Java Edition. Glowstone is a lightweight, from scratch, open-source Minecraft server written in Java that supports plugins written for the Bukkit API and its major forks, Spigot and Paper. The main goals of the project are to provide a lightweight implementation of the Bukkit API and Minecraft server where exact vanilla functionality is not needed or higher performance is desired than the official software can deliver. Glowstone makes use of a thread-per-world model and performs synchronization only when necessitated by the Bukkit API.
    Downloads: 3 This Week
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  • 6
    Implementation of an open source FTP Server which comply with RFC 959, RFC 2228, RFC 2389 and RFC 2428. Implemented in Java. This server can be run as a stand alone FTP server and can be easily embedded in any java project. Please visit our project h
    Downloads: 6 This Week
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  • 7
    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.
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    Downloads: 2 This Week
    Last Update:
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  • 8
    Eclipse Jetty Plugin
    An Eclipse plugin for running/debugging Java web applications with Jetty (successor of JettyLauncher) Features: - Support for Jetty 6, 7, 8 and 9 - Included Jetty8 - M2Eclipse Support - JSP Support - JNDI Support
    Downloads: 3 This Week
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  • 9
    M2MLabs
    A framework for building machine to machine applications. It handles device protocols, device management, storage and retrieval of data sent by devices, a web based IDE including a device simulator and scripts based custom business logic.
    Downloads: 4 This Week
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  • Train ML Models With SQL You Already Know Icon
    Train ML Models With SQL You Already Know

    BigQuery automates data prep, analysis, and predictions with built-in AI assistance.

    Build and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
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  • 10
    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
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  • 11
    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: 1 This Week
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  • 12
    DomainHealth
    DomainHealth is an open source "zero-config" monitoring tool for WebLogic. It collects important server metrics over time, archives these into CSV files and provides a simple web interface for viewing graphs of current and historical statistics.
    Downloads: 1 This Week
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  • 13
    L2jdertin, Stable L2J Cliente: Interlude.
    Downloads: 1 This Week
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  • 14
    @Configured is a (mini) rule's driven dependency injection framework. Homepage: http://configured.sourceforge.net
    Downloads: 0 This Week
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  • 15
    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
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  • 16
    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
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  • 17
    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
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  • 18
    Ambient Composite Engine, a web-based framework for writing composite software, submitted by WebactiveLabs.
    Downloads: 0 This Week
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  • 19
    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
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  • 20
    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
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  • 21
    Service for automatic execution of arbitrary Groovy scripts by scheduler (Quartz) in context of JBoss Application Server + Quartz GUI
    Downloads: 0 This Week
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  • 22
    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
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  • 23
    BLoMo generates hibernate models, DTO layer and adds improved security, validation and generic access to web applications.
    Downloads: 0 This Week
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  • 24
    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
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  • 25
    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
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