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.

  • Paessler: Easy to Use With Enterprise Power. Free Trial Icon
    Paessler: Easy to Use With Enterprise Power. Free Trial

    A low-code dashboard makes monitoring intuitive for any admin, while scripting and custom sensors give experts full control.

    You shouldn't have to choose between a monitoring tool that's easy to use and one that's powerful enough for a complex environment. PRTG's low-code interface lets any admin build dashboards, set alerts and monitor devices without scripting, while custom sensors and full API access are there when your team needs deeper control. One platform, no compromise. Download a free 30-day trial now.
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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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  • 1
    Selenium

    Selenium

    Browser automation framework and ecosystem

    Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily it is for automating web applications for testing purposes, but is certainly not limited to just that. Boring web-based administration tasks can (and should) also be automated as well. If you want to create robust, browser-based regression automation suites and tests, scale and distribute scripts across many environments, then you want to use Selenium WebDriver, a collection of language specific bindings to drive a browser - the way it is meant to be driven. If you want to create quick bug reproduction scripts, create scripts to aid in automation-aided exploratory testing, then you want to use Selenium IDE; a Chrome and Firefox add-on that will do simple record-and-playback of interactions with the browser. If you want to scale by distributing and running tests on several machines and manage multiple environments from a central point.
    Downloads: 105 This Week
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  • 2
    Hibernate

    Hibernate

    An object relational-mapping (ORM) library for Java

    The Hibernate projects offer a suite of powerful Java libraries to work with data. It is best known for Hibernate ORM, which provides relational persistence for Java models and is an implementation of the Jakarta Persistence specification. Hibernate projects do not consistently release binaries or documentation to SourceForge anymore. For up-to-date information, refer to the Hibernate website: * Hibernate ORM: https://hibernate.org/orm/ * Hibernate Validator: https://hibernate.org/validator/ * Hibernate Search: https://hibernate.org/search/ That website will also be updated with newer projects, such as Hibernate Reactive.
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    Downloads: 258 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: 157 This Week
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  • 4
    Takes

    Takes

    True object-oriented Java web framework without NULLs

    Takes is a true object-oriented and immutable Java8 web development framework. Pay attention that UTF-8 encoding is set on the command line. The entire framework relies on your default Java encoding, which is not necessarily UTF-8 by default. To be sure, always set it on the command line with file.encoding Java argument. We decided not to hard-code "UTF-8" in our code mostly because this would be against the entire idea of Java localization, according to which a user always should have a choice of encoding and language selection. We're using Charset.defaultCharset() everywhere in the code. Essential part of Bigger Example is Front interface. It's encapsulates server's back-end and used to start an instance, which will accept requests and return results. FtBasic, which is a basic front, implements that interface.
    Downloads: 3 This Week
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  • 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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  • 5
    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: 12 This Week
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  • 6
    Comprehensive component-based web application framework. Works with Servlet API 2.2 and JDK 1.2 or above. Tapestry reconceptualizes web application development in terms of Java objects, methods and properties, instead of URLs and query parameters.
    Downloads: 60 This Week
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  • 7
    Droid Plugin

    Droid Plugin

    A plugin framework on android,Run any third-party apk

    A plugin framework on android, Run any third-party apk without installation, modification, or repackage. This is a framework on android. You can run any third-party apk without installation, modification or repackage with Droid Plugin. Given its .apk file, the plugged app could be run either independently or as a plugin of the host, NO source code is needed. The plugged app are recognized as Installed by the host and other plugged apps. Very low level of code invasion, indeed just one line code to integrate DroidPlugin into the host app. Complete code level separation between host and plugged apps, only system-level message passing method provided by Android allowed. Resources management are also completely separated between host and plugged apps. Process management for plugged apps, idle processed of the plugged app will be timely recycled to guarantee minimum memory usage.
    Downloads: 1 This Week
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  • 8
    RePlugin

    RePlugin

    A flexible, stable, easy-to-use Android plug-in framework

    RePlugin is a complete Android plug-in solution which is suitable for general use. Apps do not need to be upgraded to support new components, even brand new plug-ins. With only ONE hook (ClassLoader), NO BINDER HOOK. RePlugin’s Crash ratio is as low as Ten thousandth (0.01%). In addition, RePlugin is compatible with almost ALL Android ROMs in the market. RePlugin supports almost all features seamlessly as an installed application, including static Receiver, Task-Affinity, user-defined Theme, AppCompat, DataBinding, etc. It takes only couple lines to access, whether plug-ins or main programs. RePlugin owns stable plug-in management solution which supports installation, upgrade, uninstallation and version management. Process communication, protocol versions and security check are also included. RePlugin possesses hundreds of millions users from 360 MobileSafe.
    Downloads: 1 This Week
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  • 9
    VirtualAPK

    VirtualAPK

    Lightweight plugin framework for Android

    VirtualAPK is a powerful yet lightweight plugin framework for Android. It can dynamically load and run an APK file (we call it LoadedPlugin) seamlessly as an installed application. Developers can use any Class, Resources, Activity, Service, Receiver and Provider in LoadedPlugin as if they are registered in app's manifest file. VirtualAPK is an excellent plug-in framework developed by Didi Travel, which supports almost all Android features and has four major components. Compatible with almost all Android phones on the market, this has been verified in the Didi Travel app. In terms of resources, adapt to Xiaomi, Vivo, Nubia, etc., and adopt an adaptive adaptation scheme for unknown models. The plug-in operation logic is isolated from the host to ensure that any problems with the framework will not affect the normal operation of the host.
    Downloads: 1 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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  • 10
    XUI is a Java and XML RIA platform for building smart app's. Swing, AWT and other widget sets can be used on a range of hardware. XUI's modular framework can help many aspects of application development. NetBeans and Eclipse are available.
    Downloads: 14 This Week
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  • 11
    JVending is a content provisioning system that implements most of the J2EE Client Provisioning Specification (JSR-124). JVending provides catalog management and device detection. Project also includes WAP push, MMS client and a registry for devices.
    Downloads: 4 This Week
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  • 12
    K-Framework
    The KFramework is the first integral SOFEA/SOUI framework for web based business applications using Domain Driven Design. The framework provides a web delivered SWING frontend and a WebServices based backend.
    Downloads: 3 This Week
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  • 13
    ThinWire is an Ajax RIA framework for building zero footprint Ajax browser applications that feel like desktop GUI applications. Program Ajax on the server, using an event driven GUI model that reconnects program logic. All Major Ajax Browsers Supported!
    Downloads: 3 This Week
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  • 14
    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
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  • 15
    The Struts/SourceForge site hosts sample applications and related components based on the Apache Struts Web application framework. Disclaimer: This site is not affiliated with the Apache Software Foundation.
    Downloads: 2 This Week
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  • 16
    SHEF is a WYSIWYG HTML editor framework and embeddable component for Swing. It takes the pain out of using JEditorPane.
    Downloads: 1 This Week
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  • 17
    GPSylon is a Java moving map application that is able to display maps like in an atlas and show your position by the use of a gps device. It may track your path, load overlays (e.g. shape files), download maps from expedia servers. - The source code was moved to github!
    Downloads: 2 This Week
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  • 18
    The ServeBox Foundry is an ActionScript 3 / Java framework designed for Flex 3 / Flex 4 applications development. For flex4 use the new version 3.0.0-beta. Its design is based on several design patterns, and includes tools built to resolve some of th
    Downloads: 2 This Week
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  • 19
    The AJAX JSP Tag Library is a set of JSP tags that simplify the use of Asynchronous JavaScript and XML (AJAX) technology in JavaServer Pages. Development moved to Mercurial
    Downloads: 1 This Week
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  • 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.
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    Downloads: 1 This Week
    Last Update:
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  • 21
    DNA is an open, flexible and extensible deep network analyzer software server and software architecture for gathering and analyzing network packets, network sessions and applications protocols, passively off enterprise class networks.
    Downloads: 1 This Week
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  • 22
    A set of extensions for Struts adding advanced web framework features for Java 5.0 developers, including POJO actions, declarative validation, data binding and conversion, dependency injection, interceptors and pluggable navigation.
    Downloads: 1 This Week
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  • 23
    Tikal's open source Application Development & Deployment is comprised of fully integrated suites that cover the entire software life-cycle, include tools for development and deployment of applications, software configuration management and ASQA.
    Downloads: 1 This Week
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  • 24
    2step is a development framework written in Java for developing complete web applications (including web services). As a servlet framework features access control, logging, I18N, database access, deploy, XML/XSL, etc, and uses Jetty, FOP and jCharts.
    Downloads: 0 This Week
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  • 25
    A drop-in framework for adding tagging (folksonomy) capabilities to existing applications
    Downloads: 0 This Week
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