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 Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
    Try It Free
  • $300 Free Credits for Your Google Cloud Projects Icon
    $300 Free Credits for Your Google Cloud Projects

    Start building on Google Cloud with $300 in free credits. No commitment, no credit card required until you're ready to scale.

    Launch your next project with $300 in free Google Cloud credits—no strings attached. Test, build, and deploy without risk. Use your credits across the entire Google Cloud platform to find what works best for your needs. After your credits are used, continue with always-free tier services. Only pay when you're ready to scale. Sign up in minutes and start exploring.
    Start Free Trial
  • 1
    Java Rule Engine API (JSR 94) based framework for development, integration, management, monitoring and execution of java rules based applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    This project is a 100% pure Java J2EE framework upon which small, low-profile programs can be built quickly using a model-view-control-like scheme. It is written using the Java 1.5 SDK and requires a Java Runtime Environment (JRE) version 1.5 or higher.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    Runes is a plugin-based framework that reverses the way of thinking about data processing: specify data accesses, and Runes will automatically choose an efficient representation for the data and execute the plugins to integrate it from different sources.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Rydia is a web-based, AJAX frontend to the JSurveyLib survey engine. It provides an easy way to configure surveys / questionnaires and display them on a website. Rydia will work with any web framework because it integrates like an AJAX widget.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 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
  • 5
    S-MVP

    S-MVP

    Optimized version of MVP, using annotation generics to simplify code

    Optimized version of MVP, using annotation generics to simplify code writing, using modular protocols to facilitate maintenance, APT process uses annotation parser to use JavaPoet. Complete the writing of repetitive modules, use ASpect+GradlePlugin to complete horizontal AOP programming+Javassist dynamic bytecode injection+Tinker to achieve hot repair+Retrofit to achieve elegant network operations+RxJava to easily play with data processing. In MVP, Presenter completely separates Model and View, and the main program logic is implemented in Presenter. Moreover, the Presenter is not directly related to the specific View, but interacts through the defined interface (we only need to pass parameters according to the interface when testing alone), so that the Presenter can be kept unchanged when changing the View. i.e. reuse! Not only that, we can also write a View for testing to simulate various operations of the user, so as to test the Presenter - without using automated testing tools.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    A service-oriented, single-source, Java integration server with virtual Service Stores(TM) that expose services via web services, HTTP and more. Service Flows provide process automation. Mainframe, database, email, web, soap & ftp adapters are included.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    S3C is a Simple Server-Side object Caching framework that allows web developers to cache objects on server for fast retrieval and makes it easier to persist objects on the application server in JNDI context making them readily available to the App
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    The Portable Highly Available Sensors (PHASE) project aims at creating an example application that demonstrates the usage of Application Interface Specification service interfaces of the Service Availability Forum.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    A reference implementation of a J2EE Servlet Filter implementation of SAML 2.0 Assertion Consumer Service for Service providers.
    Downloads: 0 This Week
    Last Update:
    See Project
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 10
    A lightweight java library for SAML 2 authenticating, tailored for FEIDE/Moria 3
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    SAP-JCO Support is a mapping framework for Java applications requiring SAP access. You can easily define your SAP BAPI call in XML and map the SAP fields to java value object fields. Included features are SearchHelp support and an SQL-ish query language.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    SARJ (Simple Active Record for Java) is a powerful but lightweight and simple to use library for accessing databases from Java applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    The SAVE-IDE is an integrated development environment for architectural and component-based design of embedded systems. Including a tool chain for analysis, verification and code generation, with focus on safety and real-time.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Small Business Object Framework
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    SBSTFrame
    There are a large variety of tools for application of many techniques of software testing. Likewise, there are a variety of frameworks that facilitate developing search techniques (e.g. Metaheuristics ). However, there are few tools available to the integration of these tools, which would be suitable for the application of SBST (Search Based Software Testing). Furthermore, such tools require an advanced knowledge of software testing techniques and optimization techniques. Thinking about it, the SBST Group from Informatics Institute at Universidade Federal de Goiás, are developing the SBSTFrame focuses in the integration of these two types of tools to facilitate the application of search techniques in problems of Software Testing area. The SBSTFrame plays the role of a top layer compared with software testing tools and frameworks of search techniques layer, to the communication between them could be done transparently to the user.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16

    SCF

    It's a framework that allow obtain and process properties

    SCF provides a way to access to properties sources. It also allows the replace of variables defined into the properties.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    SLIME (Scream LInux Middleware for Embedded systems) is a tiny and efficient cross-platform embedded middleware as a shared library with tools, which supports CBSD (component-based software development) to build application softwares quickly and easily.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    SEAGE
    Search Agents - a framework for collaboration of meta-heuristic agents
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    A Java library designed to allow the easy creation of lightweight educational applets for websites.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    SHEF is a WYSIWYG HTML editor framework and embeddable component for Swing. It takes the pain out of using JEditorPane.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    We wish to explore the use of Java annotations for object validation, and specifically for input validation. The result should be a framework which should be easy to add to an existing application.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Multi-purpose, platform/language independent Server with the ability to handle multiple concurrent connections on 1 socket, interactively/dynamically starting and stopping service modules. Needs only 1 port opened to access many different services.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    SISCweb is a framework to facilitate writing stateful Scheme web applications in a J2EE environment. An example WAR file ready for use is provided. Try it today!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Service Invocation Tool generates Java code to implement a declared service facade by calling operations of another service and mapping data structures between them.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    The Simple Light-weight Infrastructure for Network Computing (SLINC) is a framework for developing Public Resource Computing (PRC) projects. The main goal of SLINC is to make the PRC project development process as easy and flexible as possible.
    Downloads: 0 This Week
    Last Update:
    See Project
Monday.com Logo