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

  • All-in-one security tool helps you prevent ransomware and breaches. Icon
    All-in-one security tool helps you prevent ransomware and breaches.

    SIEM + Detection and Response for IT Teams

    Blumira’s detection and response platform enables faster resolution of threats to help you stop ransomware attacks and prevent data breaches. We surface real threats, providing meaningful findings so you know what to prioritize. With our 3-step rapid response, you can automatically block known threats, use our playbooks for easy remediation, or contact our security team for additional guidance. Our responsive security team helps with onboarding, triage and ongoing consultations to continuously help your organization improve your security coverage.
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  • Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight Icon
    Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight

    Lock Down Any Resource, Anywhere, Anytime

    CLEAR by Quantum Knight is a FIPS-140-3 validated encryption SDK engineered for enterprises requiring top-tier security. Offering robust post-quantum cryptography, CLEAR secures files, streaming media, databases, and networks with ease across over 30 modern platforms. Its compact design, smaller than a single smartphone image, ensures maximum efficiency and low energy consumption.
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  • 1
    Hibernate

    Hibernate

    An object relational-mapping (ORM) library for Java

    Hibernate is an Object/Relational Mapper tool. It's very popular among Java applications and implements the Java Persistence API. Hibernate ORM enables developers to more easily write applications whose data outlives the application process. As an Object/Relational Mapping (ORM) framework, Hibernate is concerned with data persistence as it applies to relational databases (via JDBC).
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    Downloads: 201 This Week
    Last Update:
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  • 2
    Arianne RPG

    Arianne RPG

    Arianne is an engine to develop multiplayer online games like Stendhal

    Arianne is a multiplayer online engine to develop turn based and real time games, providing a simple way of creating the game server rules and clients like our MORPG Stendhal. Our engine Marauroa uses Java and SQL for hosting hundreds of players on a solo host. Stendhal is a fun friendly and free multiplayer online adventure game with a huge and rich world. With hundreds of NPCs and different quests, features like the Travel log and achievement system keep track of progress. Thousands of creatures are ready to fight, above and below ground, and as players level up they can compare themselves on a detailed stats website. The engine Marauroa provides a simple way of creating games on a portable and robust server architecture. Marauroa manages the client server communication and provides an object orientated view of the world for game developers. It handles database access in a transparent way to store player accounts, character progress and the state of the world
    Downloads: 159 This Week
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  • 3
    Allows editing of any size file in hexadecimal, decimal and ASCII. A great tool that allows you to edit and analyze the contents for either the data or resource fork of any type of file. 68K, PPC and Carbon run on MacOS 7-9 and X.
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    Downloads: 202 This Week
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  • 4
    iDempiere

    iDempiere

    iDempiere. Community Powered Enterprise

    iDempiere. Community Powered Enterprise iDempiere Business Suite ERP/CRM/SCM done the community way. Focus is on the Community that includes Subject Matter Specialists, Implementors and End-Users. iDempiere is based on original Compiere/Adempiere plus a new architecture to use state-of-the-art technologies like OSGi, Buckminster, zk.
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    Downloads: 174 This Week
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  • eProcurement Software Icon
    eProcurement Software

    Enterprises and companies seeking a solution to manage all their procurement operations and processes

    eBuyerAssist by Eyvo is a cloud-based procurement solution designed for businesses of all sizes and industries. Fully modular and scalable, it streamlines the entire procurement lifecycle—from requisition to fulfillment. The platform includes powerful tools for strategic sourcing, supplier management, warehouse operations, and contract oversight. Additional modules cover purchase orders, approval workflows, inventory and asset management, customer orders, budget control, cost accounting, invoice matching, vendor credit checks, and risk analysis. eBuyerAssist centralizes all procurement functions into a single, easy-to-use system—improving visibility, control, and efficiency across your organization. Whether you're aiming to reduce costs, enhance compliance, or align procurement with broader business goals, eBuyerAssist helps you get there faster, smarter, and with measurable results.
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  • 5
    SW Test Automation Framework
    The Software Testing Automation Framework (STAF) is a framework designed to improve the level of reuse and automation in test cases and test environments. The goal of STAF is to provide a complete end-to-end automation solution for testers.
    Downloads: 65 This Week
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  • 6
    Eclipse 4diac

    Eclipse 4diac

    Eclipse 4diac the open source solution for industrial automation

    Eclipse 4diac is an open source PLC environment allowing to implement industrial control solutions in a vendor neutral way. 4diac implements IEC 61499 extending IEC 61131-3 with improved support for controller to controller communication and dynamic reconfiguration. With that 4diac provides the infrastructure for Industrie 4.0 and industrial IoT. Further information and the latest versions can be found here: https://eclipse.dev/4diac/
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    Downloads: 30 This Week
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  • 7
    reacTIVision
    reacTIVision is a computer vision framework for the fast and robust tracking of markers attached on physical objects, and the creation of multi-touch surfaces. It was designed for the rapid development of table-based tangible user interfaces.
    Downloads: 21 This Week
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  • 8
    IKVM.NET is a JVM for the Microsoft .NET Framework and Mono. It can both dynamically run Java classes and can be used to convert Java jars into .NET assemblies. It also includes a port of the OpenJDK class libraries to .NET.
    Downloads: 15 This Week
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  • 9
    SoundHelix

    SoundHelix

    Versatile algorithmic random music generation software written in Java

    SoundHelix is a free versatile Java framework for algorithmic random music composition. SoundHelix can generate random songs, play them (for example, on any number of MIDI devices or MIDI-capable software synthesizers) and is highly customizable using XML configuration. SoundHelix also allows writing the generated music as MIDI files. SoundHelix produces music that is actually enjoyable to listen to.
    Downloads: 21 This Week
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  • SIEM | API Security | Log Management Software Icon
    SIEM | API Security | Log Management Software

    AI-Powered Security and IT Operations Without Compromise.

    Built on the Graylog Platform, Graylog Security is the industry’s best-of-breed threat detection, investigation, and response (TDIR) solution. It simplifies analysts’ day-to-day cybersecurity activities with an unmatched workflow and user experience while simultaneously providing short- and long-term budget flexibility in the form of low total cost of ownership (TCO) that CISOs covet. With Graylog Security, security analysts can:
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  • 10
    Colorer Library
    Colorer provides source text syntax highlighting services. It colorizes source codes in editor systems (more than 200 syntaxes). Uses powerful HRC format(XML, RE, context free grammas), allowing to support any language. Available as Eclipse plugin.
    Downloads: 17 This Week
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  • 11

    OpenXava

    Automatic frontend engine for Java

    Automatic frontend engine for Java. Write just the domain classes in plain Java. Get a web application ready for production.
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    Downloads: 11 This Week
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  • 12
    ZK - Simply Ajax and Mobile
    ZK is an open-source Java framework for building modern web and mobile applications. It enables developers to create rich, interactive UIs using only Java — no JavaScript required. With 200+ Ajax-powered components, event-driven architecture, and support for popular technologies like Spring, Java EE, and JSP/JSF, ZK makes it simple to deliver powerful and user-friendly web applications.
    Downloads: 7 This Week
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  • 13
    JdonFramework

    JdonFramework

    a Domain Driven Design + CQRS + EventSource java framework

    1. INTRODUCTION --------------------------------------------- JdonFramework is a java framework to build your Domain Driven Design + CQRS + EventSource applications with asynchronous concurrency and higher throughput. 2. GETTING STARTED ------------------ In the "example" directory there are several examples for web application. You can run runTest.bat in this directory to see how to play JdonFramework in Application. In the "doc" directory there are all documents about how to use. Source Project : https://github.com/banq/jdonframework
    Downloads: 5 This Week
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  • 14
    LunaRCP provides very useful plug-ins to ease the development of Eclipse Rich Client Platform (RCP) applications. It covers a broad range of RCP topics, e.g. application startup, file operations, jobs API, SWT/JFace, database integration using Hibern
    Downloads: 11 This Week
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  • 15
    The purpose of this project is to provide a convenient Java implementation for Future Technology Devices International Inc.'s (http://ftdichip.com) FTD2xx library. This library is used to access and control FTDI's USB to serial converter chips via USB.
    Downloads: 3 This Week
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  • 16
    NanoH5 (tsl2nano)

    NanoH5 (tsl2nano)

    java bean / database driven zero code application framework

    NanoH5 (or FullRelation) is a fullstack UI implementation framework providing a model driven design (MDA). Build a complete html5 application through a given class- or database-model without coding (coding APIs are available).
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    Downloads: 4 This Week
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  • 17
    This project develops an open source editor for Clavia Nord Modular and Micro Modular synthesizers.
    Downloads: 7 This Week
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  • 18
    EZMorph is simple java library for transforming an Object to another Object.
    Downloads: 6 This Week
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  • 19
    tjger - the java game & entertainment rt

    tjger - the java game & entertainment rt

    the java game and entertainment runtime

    Framework to implement board and card games including some already developed games. Typical game elements are offered by this library, so developers just care on the essential aspects that differ. Games created with tjger are also hosted (Four wins, Oasch, Schnapsen, Trap the Wizard, etc.) and the Tjger Game Pack contains all these games.
    Downloads: 6 This Week
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  • 20
    JPPF

    JPPF

    The open source grid computing solution

    JPPF makes it easy to parallelize computationally intensive tasks and execute them on a Grid.
    Downloads: 1 This Week
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  • 21
    qcadoo MES

    qcadoo MES

    Web application for production management for SME

    qcadoo MES is an Internet application for production management targeted at small and medium companies. It’s available via the Internet browser and will help you to manage production on a daily basis. It combines the functions of large ERP systems, adapting it to the specific character of Small and Medium Companies. Your people will love it. We have moved posting new binary versions to GitHub! More info on: https://qcadoo.com/en/ Source code and binary versions: https://github.com/qcadoo/mes/
    Downloads: 3 This Week
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  • 22

    Madara

    Middleware for distributed applications

    The purpose of the project is to develop a portable programming framework that facilitates distributed and multi-threaded programming for C++, Java, and Python. MADARA was originally developed as an agent-based middleware specifically for real-time, distributed artificial intelligence, but is now more general purpose for distributed timing, control, knowledge and reasoning, and quality-of-service. MADARA is composed of several tools and middleware, and the main entry point into the system is the Knowledge and Reasoning Language (KaRL) Engine, which provides a real-time scripting language for nanosecond execution times hooked into a flexible transport layer for distributed reasoning. The KaRL engine also supports object-oriented C++, Java, and Python programming through Containers, classes that provide abstractions and references for variable location within the KaRL Knowledge Base. This project is currently in process of being ported from http://madara.googlecode.com.
    Downloads: 5 This Week
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  • 23
    A real-time graph plotter. While your application is computing and logging results to a CSV file using the LiveGraph Writer API, the plotter lets you visualise and monitor the results live - by instantly plotting charts and graphs of the data.
    Downloads: 1 This Week
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  • 24
    Eclipse based editor for phpBB MOD files
    Downloads: 4 This Week
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  • 25
    dicom related framework and applications in java. The project is divide in 3 parts, the framework, a dicom toolkit, and dicom apps.
    Downloads: 1 This Week
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