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.

  • Auth0 for AI Agents now in GA Icon
    Auth0 for AI Agents now in GA

    Ready to implement AI with confidence (without sacrificing security)?

    Connect your AI agents to apps and data more securely, give users control over the actions AI agents can perform and the data they can access, and enable human confirmation for critical agent actions.
    Start building today
  • Total Network Visibility for Network Engineers and IT Managers Icon
    Total Network Visibility for Network Engineers and IT Managers

    Network monitoring and troubleshooting is hard. TotalView makes it easy.

    This means every device on your network, and every interface on every device is automatically analyzed for performance, errors, QoS, and configuration.
    Learn More
  • 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: 125 This Week
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  • 2
    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: 292 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: 175 This Week
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  • 4
    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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  • G-P - Global EOR Solution Icon
    G-P - Global EOR Solution

    Companies searching for an Employer of Record solution to mitigate risk and manage compliance, taxes, benefits, and payroll anywhere in the world

    With G-P's industry-leading Employer of Record (EOR) and Contractor solutions, you can hire, onboard and manage teams in 180+ countries — quickly and compliantly — without setting up entities.
    Learn More
  • 5
    Playwright for Java

    Playwright for Java

    Java version of the Playwright testing and automation library

    Playwright Java is the Java version of the Playwright testing and automation library, enabling reliable end-to-end testing for modern web applications.
    Downloads: 2 This Week
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  • 6
    Netty-socketio

    Netty-socketio

    Socket.IO server implemented on Java

    This project is an open-source Java implementation of Socket.IO server. Based on Netty server framework. Supports 0.7...0.9.16 (netty-socketio 1.6.6) and 1.0+ (netty-socketio latest version) version of Socket.IO-client. Supports distributed broadcast across netty-socketio nodes (Redisson, Hazelcast). Supports OSGi, supports Spring, lock-free and thread-safe implementation, and declarative handler configuration via annotations. YourKit is kindly supporting this open source project with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. CentOS, 1 CPU, 4GB RAM runned on VM, CPU 10%, Memory 15%, 6000 xhr-long polling sessions or 15000 websockets sessions, 4000 messages per second.
    Downloads: 1 This Week
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  • 7
    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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  • 8
    Seata

    Seata

    An easy-to-use, high-performance distributed transaction solution

    Seata, or Simple Extensible Autonomous Transaction Architecture is an open source distributed transaction solution that brings high performance and easy-to-use distributed transaction services under a microservices architecture. It has 3 basic components: a Transaction Coordinator for maintaining the status of global and branch transactions; a Transaction Manager that defines the scope of global transaction; and a Resource Manager that manages resources being worked on by branch transactions, and drives branch transaction commit or rollback. Seata has played a pivotal role of distributed consistency Middleware in Ali economy, and has provided strong support for businesses of all departments. It continues to be used and trusted by dozens of other companies.
    Downloads: 1 This Week
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  • 9
    JVx - Enterprise Application Framework

    JVx - Enterprise Application Framework

    Java Application Framework

    Develop professional database applications, highly performant with little source code. JVx is a full-stack application framework to create multi tier applications with Single Sourcing for different technologies (Swing, vaadin, react, ...). Nightly builds are available: https://dev.sibvisions.com/jvx.nightly/ Maven snapshots are available: https://oss.sonatype.org/content/repositories/snapshots Eclipse plugin is available: http://marketplace.eclipse.org/search/site/eplug
    Downloads: 6 This Week
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  • Desktop and Mobile Device Management Software Icon
    Desktop and Mobile Device Management Software

    It's a modern take on desktop management that can be scaled as per organizational needs.

    Desktop Central is a unified endpoint management (UEM) solution that helps in managing servers, laptops, desktops, smartphones, and tablets from a central location.
    Learn More
  • 10
    WebHarvest - web data extraction tool
    Web data extraction (web data mining, web scraping) tool. It leverages well proved XML and text processing techologies in order to easely extract useful data from arbitrary web pages.
    Downloads: 4 This Week
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  • 11
    Makumba

    Makumba

    Moved to GitHub: https://github.com/makumba

    Makumba helps you rapidly develop data driven web applications. Provides a custom JSP taglib as a main interface, but leaves API open for advanced access. It is implemented in Java. Moved to GitHub: https://github.com/makumba
    Downloads: 5 This Week
    Last Update:
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  • 12
    THIS PROJECT IS DEAD. For the real appcelerator project, please visit http://www.appcelerator.com
    Downloads: 5 This Week
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  • 13
    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: 2 This Week
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  • 14
    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
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  • 15
    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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  • 16
    Echo2 is the next-generation of the Echo Web Framework, a platform for developing web-based applications that approach the capabilities of rich clients. http://www.nextapp.com/platform/echo2/echo/ It is based on AJAX technology. This version includes com
    Downloads: 1 This Week
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  • 17
    FireWeb

    FireWeb

    Java Single Page Web Application Framework

    Java Single Page Application Framework. Using POJO/JavaScript/WebSocket/HTML. Without any scripting - only pure Java classes. Simply and easy to learn, use and extend.
    Downloads: 1 This Week
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  • 18
    (Really) Thin HTTP Client: no https, small jar file size (never over 25kb), no dependencies (just jre1.6+ or jdk1.6+), can do POST and GET request methods, can send POST methods with multipart/form-data, can send request parameters and fast. Get it!
    Downloads: 1 This Week
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  • 19
    WebOnSwing
    Component based web application framework that renders web pages with Swing components.You can develope your web application without taking into account HTML and JS; map Swing applications to html, handling client events and each component persistence.
    Downloads: 1 This Week
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  • 20

    jReflectServer

    A lightweight Java HTTP server and webservice-framework

    jReflectServer is a very small, lightweight and super easy-to-use java web-server and -framework for creating (distributed) pure java web-applications, webservices and small websites. jReflectServer is able to randomly forward requests to a cluster of remote server nodes. For this distributed code execution no special code is needed. A distributed session can be used to share data between the server instances. Due to its small footprint, it's also perfect for embedded hardware like the raspberry pi. It is based on proven components like apache http components, apache file upload and jsoup.
    Downloads: 1 This Week
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  • 21
    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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  • 22
    A drop-in framework for adding tagging (folksonomy) capabilities to existing applications
    Downloads: 0 This Week
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  • 23
    AJAF (A Java AJAX Framework) is a very light weight engine that assists developers in – a) AJAX communication between browser and server and b) HTML rendering to achieve partial page refreshes.
    Downloads: 0 This Week
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  • 24
    Action-driven component-oriented web application framework based on Model-View-Controller (MVC) architecture. Goals: minimum complexity & dependency on the framework API, maximum power, reliability and conformance to common standards.
    Downloads: 0 This Week
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  • 25
    AdaptiveCells J2EE generates test-beds for benchmarking J2EE performance. They consists of highly customizable EJB cells that can emulate CPU load, memory usage, memory leaks and exceptions. The behaviour of the cells is coordinated from a web front-end.
    Downloads: 0 This Week
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