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.

  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • Build Securely on Azure with Proven Frameworks Icon
    Build Securely on Azure with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 1
    A reference implementation of BioAPI2.0 is being developed.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 2
    A complete survey administration and data collection system. A fully featured replacement for Quancept, supporting CAPI, Web, CATI, PDA and Paper survey modes. Sonar is the reference implementation of JCaiF for CAPI and Web survey interviewing. Try it!
    Leader badge
    Downloads: 4 This Week
    Last Update:
    See Project
  • 3
    Open ESB

    Open ESB

    A Java Business Integration (JBI, JSR-208) based ESB implementation

    This is a fork of the OpenESB, a Java-based open source enterprise service bus that implements the JBI specification (JSR 208).
    Downloads: 6 This Week
    Last Update:
    See Project
  • 4

    MDIFramework

    A ready-to-use architecture for Java MDI applications

    This project provides a ready to use architecture for Java MDI applications. This project is a copy of the http://java.net/projects/mdiframework/ on java.net (I own the two projects), because the old java.net hosting infrastructure will soon close. The original project exists since 2006.
    Downloads: 3 This Week
    Last Update:
    See Project
  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • 5
    A set of common reusable code that I use, manage and maintain. It is generalized and uses alot of extensible interface based API's leaving expansion to the basic concepts in these libraries almost limitless.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 6

    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
    Last Update:
    See Project
  • 7
    A set of frameworks and applications related to course planning and class scheduling, intended to be used by college students. Has some nice features, like graph visualization and automatic generation of timetables based on constraints.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 8
    Aperture is a Java framework for extracting and querying full-text content and metadata from various information systems (file systems, web sites, mail boxes, ...) and the file formats (documents, images, ...) occurring in these systems.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    ASAF - Another Swing App Framework

    ASAF - Another Swing App Framework

    an OSGi-based Swing Application Framework

    Downloads: 4 This Week
    Last Update:
    See Project
  • Go From AI Idea to AI App Fast Icon
    Go From AI Idea to AI App Fast

    One platform to build, fine-tune, and deploy ML models. No MLOps team required.

    Access Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
    Try Free
  • 10
    JPF (Java Plugin Framework) is a general-purpose plug-in framework intended to help building scalable, extendable Java applications with low cost of maintenance. The framework is specially designed to be easily included into Java project of any kind.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 11
    This project develops an open source editor for Clavia Nord Modular and Micro Modular synthesizers.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 12
    Pronto provides a lightweight framework for managing the runtime configuration, operation and dependencies of Java applications.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 13
    ScriptManager is a command-line tool for executing and managing plain SQL scripts. ScriptManager was written in pure Java and requires JDBC driver to connect to any JDBC-compliant database.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 14
    Java MVC

    Java MVC

    Brutos is an easy and powerful mvc controller.

    Brutos is an easy and powerful mvc controller configurable for annotation, programming and XML with support for Inversion of Control and Dependency Injection. Compatible with JSF, Velocity, DisplayTag, Spring, PicoContainer, ...
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15
    Microlog is a small, yet powerful logging library for mobile devices based on the Log4j API. Supports Java ME (J2ME) and Android. Logs to device, to PC or to servers online. Used in all phases from development on emulator/device to outdoor field-testing.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 16
    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: 1 This Week
    Last Update:
    See Project
  • 17
    Prowide Core

    Prowide Core

    Java framework for SWIFT [tm] MT (FIN) messaging

    Prowide Core (previously known as WIFE) is an open source Java framework for managing SWIFT MT messages. The library key features are the comprehensive Java model for all MT message types, along a straight-forward parsing and building API. The project is active since 2006, production ready and commercially supported. For detail information on the support package options please check: https://www.prowidesoftware.com/services SWIFT is a trademark of S.W.I.F.T. SCRL. (www.swift.com) Prowide in GitHub: https://github.com/prowide
    Leader badge
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    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
    Last Update:
    See Project
  • 19
    ASPIRE (Application-Specific Improvement of Software Reliability) is a tool to measure the reliabilities of J2EE applications. With the help of ASPIRE,you can predict and analysis the reliability of the application.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 20
    Carrot2
    Project moved to GitHub! https://github.com/carrot2/carrot2 Carrot2 is an Open Source Search Results Clustering Engine. It can automatically organize small collections of documents, e.g. search results, into thematic categories. Carrot2 integrates very well with both Open Source and proprietary search engines.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 21
    It is a lightweight API to invoke web services (RMI, CORBA, WebService (SOAP), XML-RPC, EJB, Hessian, Burlap, REST, ...), how simple Java Object calls. You can integrate Crispy in a Service Oriented Architecture (SOA) or in a Rich Client Platform (RCP).
    Downloads: 3 This Week
    Last Update:
    See Project
  • 22
    Datanodes is a non-strict subset of XML, providing a very simple way of storing configuration data without all the normal XML-clutter, and with native support for binary data.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 23
    Eclipse based editor for phpBB MOD files
    Downloads: 3 This Week
    Last Update:
    See Project
  • 24
    The power provided by OWL reasoning engines can be translated into Java applications and vice versas with this framework. A binding among OWL and Java concepts has been done in order to incorporate the semantic features of OWL into Java.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 25
    ====== OIL (Object Introspection Library) for C++ ====== Aims at Facilitating the Object Introspection Capabilities for C++ Developers. The Goals is to be able to display and modify the contents of any given C++ Object at run time.
    Downloads: 3 This Week
    Last Update:
    See Project
MongoDB Logo MongoDB