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.

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  • 1
    ConquestExplorer
    The ConquestExplorer framework is an open- source software for rapid prototyping of data-oriented desktop applications. It supports a transparent data model, interfaces for external tools and CRUD (Create, Update, Delete) features.
    Downloads: 0 This Week
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  • 2
    Contelligent is a J2EE content management system that is targeted at developers and integrators. It provides an advanced package mechanism for development and deployment of Contelligent projects and extensions.
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  • 3
    A small library that provides a powerful and container-less Dependency-Injection mechanism, via AspectJ and Groovy. If you are tired of reams of XML configuration files, managing complex factories and containers, this non-API solution may appeal to you.
    Downloads: 0 This Week
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  • 4
    Contextor
    Contextor is a light-weight simple-to-use Java based library to help developers and researchers working with the general concept of a resource; as examples, resources can be text resources, web resources, images and videos.
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  • 5
    The Contingency Management Framework helps design fault-tolerant, and resource-aware systems. It monitors vital resource (e.g. the network) and sets up coping strategies when different contingent states occurs. Used in Ubiquitous Computing research.
    Downloads: 0 This Week
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  • 6
    Control Root is a Java component framework that is designed to absolutely minimize dependencies and improve the design of Java applications: 1) Components make no reference to the framework API 2) All interfaces are 100% universal and framework managed
    Downloads: 0 This Week
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  • 7
    Converse enables rapid data migration between different types.
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  • 8
    Java-Framework for matching Content of EJBs automatically to Swing-Components.
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  • 9
    This is an Open Source Project for academic purposes. Coppeer is a P2P framework for developing agent based emergent-behavior application. Over Coppeer we implemented multiple CSCW applications, such as COE and KCE, and Knowledge Management application (
    Downloads: 0 This Week
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  • 10
    Core Java Beans provides functionality needed by most J2SE/J2EE applications that isn't yet provided by the JDK specification directly. This API is a foundation that fills the gaps between the JDK and any application. Jdbc & XML simple and improved.
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  • 11

    Corinna

    Open source implementation of the Java Bindlet technology

    The Corinna is a open source software implementation of the Java Bindlet technology. The Java Bindlet is similar to Java Servlet platform, but allows the implementation of software components for the treatment of requests in various protocols (binary or text based protocols), not just those based on HTTP. The framework supports the implementation of both TCP and UDP bindlets.
    Downloads: 0 This Week
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  • 12
    A light weight file IO library to ease the use of Java File IO related API and enable the testability.
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  • 13
    CouchUnit is a Java Testing Framework, similar to DBUnit, that eases the construction and execution of Integration Tests against CouchDB Datasources.
    Downloads: 0 This Week
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  • 14
    Couplet
    Couplet is a unifying application development environment for Java servlets and applets. Support for J2ME midlets and non-Java platforms, such as IPhone, is also planned.
    Downloads: 0 This Week
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  • 15

    Creative ORM

    A small and easy ORM solution in Java, using annotations.

    Creative ORM is a small Annotation based framework for DAO / ORM mapping in Java. Used reflection to create / map entities
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  • 16
    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: 0 This Week
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  • 17
    CriticAL

    CriticAL

    A Critic for APIs and Libraries

    CriticAL: A Critic for API and Libraries. This project provides a framework for critiquing API-client code in three ways: i) it explains the complex interaction of API elements, ii) it criticizes the improper use of the API, and iii) it recommends the related API elements that may be needed next by the user.
    Downloads: 0 This Week
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  • 18
    Xwidgets is a multiple UI framework for java. It uses Swing, SWT and Qt Jambi to draw your apps. Charva is pending.
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  • 19
    Crux Framework

    Crux Framework

    Crux is a framework to develop efficient Web/Mobile applications.

    The framework uses GWT (Google Web Toolkit) and offers a powerful development model. With Crux, the entire frontend code can be written only in Java. Crux developers can create declarative web pages using XHTML in a very simple way! The code in the application built is converted to Javascript and can run in a customized way in every modern web browser. This application can also run in multiple devices such as smartphones, tablets, desktops and even TVs. And all of this is done with no additional code. Crux supports several useful APIs, allowing you to work with REST, offline applications, social network applications, among others. Crux also allows you to work with flexible and rich visual components that can be used to build several types of applications.
    Downloads: 0 This Week
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  • 20
    The goal of the Crystalline project is to create a cache framework that can be used with maximum transparency in both persistence and business layers, even on pre-existing software components.
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  • 21
    Cubicle is a framework / application server based on the infamous Spring framework and works with a component approach. To make application developement easier, Cubicle provides a pluggable application mechanism, provides common features (user management
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  • 22
    Cuckoo is an Ajax Framework based on Echo2 and exclusively for J2EE applications.
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  • 23
    The Customizable Caching Framework provides a basic but robust implementation of a cache with expiry and memory management features. It also provides entry points to populate the cache, making it reusable in several applications.
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  • 24
    Cuttle is a flexible MVC framework. You can assemble partial page and action method by configure. It can integrate with spring, and supports AJAX directly.
    Downloads: 0 This Week
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  • 25
    A service-oriented, cross-platform application framework (v1 was implemented in .net, current codebase is in Java), which is trageted to speed up and standartise development by providing a robust freely extensible component structure.
    Downloads: 0 This Week
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