Browse free open source Java Internet Software and projects below. Use the toggles on the left to filter open source Java Internet Software by OS, license, language, programming language, and project status.

  • Outgrown Windows Task Scheduler? Icon
    Outgrown Windows Task Scheduler?

    Free diagnostic identifies where your workflow is breaking down—with instant analysis of your scheduling environment.

    Windows Task Scheduler wasn't built for complex, cross-platform automation. Get a free diagnostic that shows exactly where things are failing and provides remediation recommendations. Interactive HTML report delivered in minutes.
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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.
    Try free now
  • 1
    Vuze - Azureus

    Vuze - Azureus

    An extremely powerful and configurable BitTorrent client

    Vuze (formerly Azureus) is an extremely powerful and configurable BitTorrent client. Search and download torrent files. Play, convert and transcode videos and music for playing on many devices such as PSP, TiVo, XBox, PS3, iTunes (iPhone, iPod, Apple TV).
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    Downloads: 3,959 This Week
    Last Update:
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  • 2
    winPenPack

    winPenPack

    The portable software collection

    winPenPack is a project that aims at collecting the most frequently used and most popular open source applications made portable, so that they can be executed without installation from any USB Flash Drive or Hard Disk. The winPenPack suites offer a wide range of portable applications like office tools, internet tools, multimedia tools, development tools, security applications and other frequently used utilities. Everything you need, completely free, open source and portable!
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    Downloads: 573 This Week
    Last Update:
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  • 3
    LogicalDOC Document Management - DMS

    LogicalDOC Document Management - DMS

    smart and open source document management system

    LogicalDOC is both document management and collaboration system. The software is loaded with many functions and allows organizing, index, retrieving, controlling and distributing important business documents securely and safely for any organization and individual. Gone are the days when companies used paper-based processes such as printing, mailing and manual filing of paper documents; our document management system replaces all of this with electronic procedures that allow your organization to reduce costs significantly. Check out https://www.logicaldoc.com to learn more. The design of LogicalDOC is based on best-of-breed Java technologies in order to provide a reliable DMS platform. The main interface is web-based, no need to install anything else; users can access the system through their browser. LogicalDOC CE is 100% free software and is packaged with an open source database; while it supports all major DBMS, developers still recommend MySQL for production systems.
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    Downloads: 218 This Week
    Last Update:
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  • 4
    Alfresco Community Edition

    Alfresco Community Edition

    Open Source Enterprise Content Management ECM

    The open source Enterprise Content Management (ECM) software that handles any type of content, allowing users to easily share and collaborate on content.
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    Downloads: 132 This Week
    Last Update:
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  • Atera - The depth of a full-stack IT platform, with the power of AI. Icon
    Atera - The depth of a full-stack IT platform, with the power of AI.

    Atera introduces your autonomous AI agent - Ensure operational efficiency at any scale with 24/7 autonomous IT support.

    Atera prioritizes security and compliance through robust protections that align with industry standards. Our AI-driven features were built on responsible AI principles and empower IT teams to work efficiently while maintaining trust and compliance.
    Learn More
  • 5
    Liferay Portal

    Liferay Portal

    The world's leading open source portal

    Liferay Portal is the world's leading enterprise open source portal framework, offering integrated Web publishing and content management, an enterprise service bus and service-oriented architecture, and compatibility with all major IT infrastructure. Check GitHub for our latest releases: https://github.com/liferay/liferay-portal/releases https://github.com/liferay/liferay-ide/releases
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    Downloads: 118 This Week
    Last Update:
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  • 6
    Google2SRT

    Google2SRT

    Download, save and convert multiple subtitles from YouTube videos

    Google2SRT allows you to download, save and convert multiple subtitles and translations from YouTube and Google Video to SubRip (.srt) format, which is recognized by most video players. You can download XML subtitles or simply type video's URL, Google2SRT will do the rest.
    Downloads: 79 This Week
    Last Update:
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  • 7
    Universal Password Manager

    Universal Password Manager

    Store all your passwords in one secure encrypted database.

    Universal Password Manager allows you to store all your passwords in one highly secure encrypted database. Its strengths are simplicity, portability and security (uses 128bit AES encryption). UPM is available on Android, Windows, OS X & Linux.
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    Downloads: 34 This Week
    Last Update:
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  • 8
    FullSync

    FullSync

    Easy file synchronization for everyone

    FullSync is a powerful tool that helps you keep multiple copies of various data in sync. I.e. it can update your Website using (S)Ftp, backup your data or refresh a working copy from a remote server. It offers flexible rules, a scheduler and more
    Downloads: 24 This Week
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  • 9
    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: 18 This Week
    Last Update:
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  • Rezku Point of Sale Icon
    Rezku Point of Sale

    Designed for Real-World Restaurant Operations

    Rezku is an all-inclusive ordering platform and management solution for all types of restaurant and bar concepts. You can now get a fully custom branded downloadable smartphone ordering app for your restaurant exclusively from Rezku.
    Learn More
  • 10
    GeoNetwork opensource - Metadata Catalog
    A web based Metadata Catalog Server for data description and discovery. Supports both generic and geospatial data discovery. It implements international standards (e.g. ISO19115/19139/19119, ISO19115-3, DCAT-AP, CSW 2.0, OGC API Records). It originates from the United Nations and is used by many governments as geoportal software. Active development and discussion takes place on GitHub and OSGeo Discourse. You can also connect directly with the companies supporting the development. Source code available on github https://github.com/geonetwork/
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    Downloads: 108 This Week
    Last Update:
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  • 11
    FCKeditor

    FCKeditor

    FCKeditor (retired)

    FCKeditor is the previous version of CKEditor and has been discontinued after version 2. The new CKEditor is redesigned from the ground up, offering more WYSIWYG text editing features, enhanced security and better integration. Don’t force yourself with retro FCKeditor. Switch to the new, cool CKEditor at ckeditor.com
    Downloads: 10 This Week
    Last Update:
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  • 12
    eXo Platform - Digital Workplace

    eXo Platform - Digital Workplace

    The open-source digital workplace for growing teams and enterprises.

    eXo Platform is an open-source digital workplace solutions for growing teams and enterprises, featuring: ✅ Internal Communications ✅ Team Collaboration ✅ Knowledge Management ✅ Productivity and Employee Recognition use cases. eXo stands out by: 👍 its fluid and integrated employe experience, on desktop and mobile 👍 the platform’s ease of use 👍 innovative employee engagement features. eXo Platform is developed on open-source technology and supports open standards. The platform is extensible and interoperable, all services are exposed REST APIs. The platform also offers additional security capabilities, developed in collaboration with highly sensitive clients. With eXo Platform, companies can connect, engage and reward their employees, customers, and partners with its social, engagement and gamification capabilities.
    Downloads: 9 This Week
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  • 13
    TunesViewer

    TunesViewer

    Easy podcast access in Linux, Android

    A small, easy-to-use program to access itunesU media & podcasts in Linux and Android.
    Downloads: 6 This Week
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  • 14
    Compiere ERP + CRM Business Solution
    Compiere ERP+CRM is the leading open source ERP solution for Distribution, Retail, Manufacturing and Service industries. Compiere automates accounting, supply chain, inventory and sales orders. Compiere ERP is distributed under GPL V2 by Compiere, Inc.
    Downloads: 4 This Week
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  • 15
    ReVanced Extended byIE
    *YouTube Extended: v20.40.45 *Music Extended: v8.40.54 *ReVanced YouTube: v20.13.41 *ReVanced Music: v8.29.56 *ReVanced MicroG: v0.3.2.0.254550 *ReVanced Reddit (Extended-Extras): v2026.04.0 *ReVanced X (Extended-Extras): v11-61-0-release-0 *Extended Morphe Patches: patches-v1.8.0 *ReVanced Patches: cli_v5.0.1-patches_v5.32.0 *X Extended Patches: cli_v5.0.2-patches_piko-v2.0.0-dev.23 *Reddit Extended Morphe Patches: v5.9.0-dev10 Thank you! ReVanced Team!
    Downloads: 20 This Week
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  • 16
    Cofax is a Web-based text and multimedia publication system. It was designed to simplify the presentation of newspapers on the Web and to expedite real-time Web publication. At Knight Ridder, it is used to manage and serve content for 30+ newspapers.
    Downloads: 11 This Week
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  • 17
    MeanOS

    MeanOS

    The smallest and the most powerful operating system.

    The first decentralized, artificially intelligent, MEAN.js stack, operating system. Mean OS is the only operating system hosted anonymous using a P2P network and a suite of non-standard in-browser delivery mechanisms. Mean OS is specifically designed to support both Brave and Tor but is compatible with all other major browsers. Mean OS is Proud to be a BRAVE and TOR supporter, be free!!
    Downloads: 8 This Week
    Last Update:
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  • 18
    winebox

    winebox

    Run Windows applications on any computer.

    WineBOX is an Open Source implementation of the Windows API and a program loader, allowing many unmodified Windows binaries to run on x86-based computers with out need a operative system.
    Downloads: 13 This Week
    Last Update:
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  • 19
    ERP and CRM suite, including eCommerce, inventory, warehouse, order, customer management, general ledger, MRP, POS. Database independent service-oriented architecture (SOA)
    Downloads: 3 This Week
    Last Update:
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  • 20
    JDBC Tester is a software that allows to prove JDBC connections and SQL statements. The central idea is to have a software that is used for the design of statements and learning SQL with an graphical user interface simple to use.
    Downloads: 11 This Week
    Last Update:
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  • 21
    R-Net is a project and is an initiative. R-Net as a project involves the development of a database which will allow the exchange of ideas and boost peer to peer collaboration to improve the city living standards; the recruiting, organization and mobiliza
    Downloads: 9 This Week
    Last Update:
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  • 22
    Pebble is a lightweight, open source, Java EE blogging tool. It's small, fast and feature-rich with unrivalled ease of installation and use. Blog content is stored as XML files on disk and served up dynamically, so there's no need to install a database
    Downloads: 2 This Week
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  • 23
    mvnForum is a open source, powerful, easy to use/setup bulletin board (forum) built on the J2EE technology(Jsp/Servlet) and compatible with any Servlet Container which supports Jsp 1.2 and Servlet 2.3. The official home page is www.mvnForum.com
    Downloads: 2 This Week
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  • 24
    Capivara is a graphical file transfer and file synchronization application. It supports network protocols such as SFTP and FTP.
    Downloads: 2 This Week
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  • 25
    Magnolia CMS

    Magnolia CMS

    Java CMS that delivers smartphone simplicity on an enterprise scale

    Magnolia is an open Java CMS that delivers smartphone simplicity on an enterprise-scale. The mobile-inspired HTML5 user interface works through customisable, task-focused Apps, a notification stream called the Pulse, and a system of Favorites for quickly accessing the workspace. Magnolia CMS allows organizations to orchestrate online services, sales and marketing across all digital channels, maximizing the impact of every touchpoint. Magnolia’s open-source technology, support of open standards such as CMIS and JCR, as well as integration with the Spring Framework, enable developers to unlock back-end systems and third-party applications. Magnolia CMS enterprise customers include: Abbott Diabetes Care, Al Arabiya, Allianz, Atlassian, DFAS, EADS, Generali Group, ING Bank, Foxtel, Michelin, Migros, Pirelli, Sony, TeliaSonera and US Navy. Magnolia is used in more than 100 countries across the world by governments and leading FORTUNE 500 enterprises.
    Downloads: 1 This Week
    Last Update:
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