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.

  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
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  • 1
    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: 13 This Week
    Last Update:
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  • 2
    A robust, scalable and efficient asynchronous I/O framework, supports TCP, SSL over TCP, UDP and Pipe.
    Downloads: 5 This Week
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  • 3
    SHEF is a WYSIWYG HTML editor framework and embeddable component for Swing. It takes the pain out of using JEditorPane.
    Downloads: 2 This Week
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  • 4
    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:
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  • 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
    (The Bliki engine Wikipedia API now moved to http://code.google.com/p/gwtwiki ). Eclipse plugin: Converts Wikipedia syntax to HTML. Features: syntax highlighting, content outline&assist, templates, HTML preview&insert, Java/PHP link2wiki, PDF creation.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 6
    OpenCms Commons is a module suite for OpenCms 7 enhance the work and development with OpenCms. Main Features: XSD-Choice Elements; FileSelectorWidget with filter on ResourceTypes; Velocity render engine with plug-able Context-Obj.; Build with maven.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    EventWeb creates a bi-directional channel between a browser and a web server. This allows the user to interact with a web application in the same way as a desktop application. Works with Java servlets or as a stand-alone application server.
    Downloads: 1 This Week
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    See Project
  • 8
    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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  • 9
    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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  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    Build gen AI apps with an all-in-one modern database: MongoDB Atlas

    MongoDB Atlas provides built-in vector search and a flexible document model so developers can build, scale, and run gen AI apps without stitching together multiple databases. From LLM integration to semantic search, Atlas simplifies your AI architecture—and it’s free to get started.
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  • 10
    SweetDEV RIA is a complete set of Java/J2EE world-class Ajax tags. It helps you to design Rich GUI in a thin client.
    Downloads: 0 This Week
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  • 11
    This Amazon Mechanical Turk (MTurk) SDK is no longer under active development as of 12/31/2017. The latest MTurk SDKs, with support for most common programming languages, are now a part of the Amazon Web Service (AWS) SDKs at https://aws.amazon.com/tools/. With the AWS SDKs, you can also connect to MTurk using the AWS Command Line Interface (https://aws.amazon.com/cli/), allowing you to perform operations from your Windows, Mac, or Linux command line without having to write code.
    Downloads: 0 This Week
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  • 12
    Anokha is a MVC web framework based on Java/J2EE technology that simplify the enterprise application development by providing a set of presentation and business tier components being J2EE-API independent and high extensible. Easy to use and learn.
    Downloads: 0 This Week
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  • 13
    Aracnis is a Java based framework for building distributed web spiders. These spiders can be used to accomplish a variety of tasks, for example, screen-scraping and link integrity checking.
    Downloads: 0 This Week
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  • 14
    Cherokee is a fully extensible and scriptable automation engine for any and all java applets. To make it work for your favorite java applet the most you have to do is write is two classes.
    Downloads: 0 This Week
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  • 15

    Concept Framework

    Dynamic Knowledge Repository

    Downloads: 0 This Week
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  • 16
    The EchoPoint project provides a rich collection of web components which seamlessly integrate with the Echo Web Framework. EchoPoint, combined with the Echo Web Framework, provides the one of the simplest and richest frameworks for Web application devel
    Downloads: 0 This Week
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  • 17
    EchoBinding is an extension to the Echo2 web framework. EchoBinding provides a data binding facility that helps you to synchronize screen and session state of your Echo2 applications.
    Downloads: 0 This Week
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  • 18
    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: 0 This Week
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  • 19
    Open Source Single Sign-On (SSO) and Identity Management
    Downloads: 0 This Week
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  • 20
    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: 0 This Week
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    See Project
  • 21
    GWT Pleso Framework is a high-level framework based on Google Web Toolkit (GWT) for creating visual AJAX database front-end user interfaces. GWT Pleso Framework enables you to create automatically generated user interface based on business-logic classes.
    Downloads: 0 This Week
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  • 22
    HttpdBase4J is an embeddable Java web server framework that supports HTTP, HTTPS, templated content and serving content from inside an archive.
    Downloads: 0 This Week
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  • 23
    IBDOM is a JavaScript framework that enables the easy injection of data contained in JS objects, and collections of JS Objects, into HTML, XHTML, and XML Documents, via the DOM. Enables keeping Markup away from JS. Can be used with DWR or RJS Templates.
    Downloads: 0 This Week
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  • 24
    The goal of this project is the development of plugins for Content Management System Jalios JCMS. This project provides a plugins' manager for JCMS 5.0.x.
    Downloads: 0 This Week
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  • 25
    JS4J is an extensible framework built on Java and XML that generates Javascript. It contains a built-in implementations to manage objects that have been generated by the framework, and can provide a scalable alternative to AJAX implementations.
    Downloads: 0 This Week
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