Open Source Java Software

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

  • 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.
    Start Free
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 1
    Sweet Home 3D

    Sweet Home 3D

    An interior design application to draw house plans & arrange furniture

    Download the full version at: https://www.sweethome3d.com/download.jsp?adid=sourceforge Sweet Home 3D is an interior design application that helps you to quickly draw the floor plan of your house, arrange furniture on it, and visit the results in 3D.
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    Downloads: 38,324 This Week
    Last Update:
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  • 2
    Xiaomi.eu Multilang MIUI ROMs

    Xiaomi.eu Multilang MIUI ROMs

    OFFICIAL mirror of MIUI Multilang ROM by https://xiaomi.eu/

    Included languages: English (en.miui.com, xiaomi.eu) Chinese (miui.com) Polish (Acid, miuipolska.pl) Slovak (ingbrzy, https://miuios.cz) Czech (VMach, https://miuios.cz) Bulgarian (Global) Hungarian (vagyula, miui.hu) French (Global) Swedish (Global) Russian (Global) Ukrainian (Global) Belorussian (Global) Croatian (Masva, MIUI Adria) Vietnamese (Belmont-Gabriel) Italian (miui.it) Greek (Global) Norwegian (Global) Dutch (cueie, mannyribo, redmaner) Spanish (nosijf982) Turkish (suatsari) Brazilian-Portuguese (Global, Feurrado, Lobianco) Portuguese (KcNirvana, Lippe35) Hebrew (Global) Romanian (ashtefan) German (muhamed89, cp82, dahool2016, and more) Catalan (deivids84) Korean (cjhyuky, bradly1, xiaomiqm) Slovenian (bostjan2016) Serbian (dudjaa) Thai (Global) Finnish (dogiex) Arabic (Global) Japanese (ScratchBuild) Burmese (Global) Danish (Global)
    Leader badge
    Downloads: 12,123 This Week
    Last Update:
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  • 3
    Webmin

    Webmin

    A web-based interface for system administration of UNIX

    A web-based system administration tool for Unix servers and services. https://github.com/webmin/webmin
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    Downloads: 8,165 This Week
    Last Update:
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  • 4
    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).
    Leader badge
    Downloads: 2,291 This Week
    Last Update:
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  • Fully Managed MySQL, PostgreSQL, and SQL Server Icon
    Fully Managed MySQL, PostgreSQL, and SQL Server

    Automatic backups, patching, replication, and failover. Focus on your app, not your database.

    Cloud SQL handles your database ops end to end, so you can focus on your app.
    Start Free
  • 5
    FreeCol

    FreeCol

    Colonize the New World.

    FreeCol is a turn-based strategy game based on the old game Colonization, and similar to Civilization. The objective of the game is to create an independent nation. You start with only a few colonists defying the stormy seas in their search for new land. Will you guide them on the Colonization of a New World? The last stable version release can be found here: https://sourceforge.net/projects/freecol/files/latest/download The latest test pre-release of the next version can be found here: https://github.com/FreeCol/freecol/releases If you want to contribute to Freecol please visit our welcome information thread to see how here: https://sourceforge.net/p/freecol/discussion/719661/thread/2d0063a3bc/
    Leader badge
    Downloads: 656 This Week
    Last Update:
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  • 6
    Cool Reader

    Cool Reader

    A cross-platform XML/CSS based eBook reader

    CoolReader is fast and small cross-platform XML/CSS based eBook reader for desktops and handheld devices. Supported formats: FB2, TXT, RTF, DOC, TCR, HTML, EPUB, CHM, PDB, MOBI. Platforms: Win32, Linux, Android. Ported on some eInk based devices.
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    Downloads: 458 This Week
    Last Update:
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  • 7
    OpenKM Document Management - DMS

    OpenKM Document Management - DMS

    Document Management System and Content Management System

    OpenKM Community Edition is a free Document Management System (DMS) that helps businesses control the production, storage, management and distribution of electronic documents, boosting effectiveness and productivity. It integrates document management, collaboration and advanced search into one easy-to-use solution, including administration tools for user roles, access control, security levels, activity logs and automation setup. With OpenKM Community Edition you can: Collect information from any digital source. Collaborate with colleagues on documents and projects. Capitalize on accumulated knowledge by locating documents and information sources. Control business processes with an embedded workflow engine. Automate tasks. For a complete feature list visit: http://goo.gl/au8cQy
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    Downloads: 209 This Week
    Last Update:
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  • 8
    CMDBuild -Platform for  Asset Management

    CMDBuild -Platform for Asset Management

    Environment for configuring customized applications Asset Management

    CMDBuild is the open source web environment for the configuration of custom applications for the Asset Management. With CMDBuild you can build and extend your own CMDB, modeling it according to the needs of your Organization. You can configure workflows, reports, dashboards, schedule operations and checks, manage documents, georeference your asset in maps or view them in 3D models. You can also interoperate with external solutions through webservices. Or you can choose one of the standard vertical solutions, already configured: CMDBuild READY2USE and openMAINT.
    Leader badge
    Downloads: 1,027 This Week
    Last Update:
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  • 9
    CARE2X - Integrated Hospital Info System
    Integrated Hospital Information System. PHP,mySQL,PostgreSQL. Surgery, Nursing,Outpatient,Wards,Labs, Pharmacy, Security,Admission,Schedulers, Repair, Communication & more. Multilanguage, WYSIWYG forms, userconfig, embedded workbots. Modular & scalab
    Downloads: 123 This Week
    Last Update:
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  • Veeam Data Platform v13.1 Icon
    Veeam Data Platform v13.1

    Move workloads across hypervisors and clouds with no vendor lock-in. Try VDP free today.

    Try Veeam Data Platform today. Experience the unified platform that's secure by design, portable by default, and proven to recover clean, fast, and anywhere.
    Try Now
  • 10
    Universal Media Server

    Universal Media Server

    Streams many media formats with minimal configuration

    Universal Media Server is a DLNA-compliant UPnP Media Server Universal Media Server supports all major operating systems, with versions for Windows, Linux and Mac OS X. The program streams or transcodes many different media formats with little or no configuration. UMS is powered by MEncoder, FFmpeg, tsMuxeR, AviSynth, MediaInfo and more, which combine to offer support for a wide range of media formats Check out the list of media renderers here: http://www.universalmediaserver.com/about/
    Downloads: 65 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: 52 This Week
    Last Update:
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  • 12
    Frost
    Freenet front end written in Java. Supports multiple up/downloads, messages, searching and more.
    Downloads: 79 This Week
    Last Update:
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  • 13
    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: 16 This Week
    Last Update:
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  • 14
    ReportServer Community Edition

    ReportServer Community Edition

    ReportServer is a modern and versatile business intelligence platform

    ReportServer is a modern and versatile open source business intelligence (BI) platform with powerful reporting features. With ReportServer you are not limited to one provider's solutions. ReportServer integrates Jasper, Birt, Mondrian and Excel-based reporting: choose what best suits your needs! The source code is also available in GitHub: https://github.com/infofabrik/reportserver ReportServer scripting samples: https://github.com/infofabrik/reportserver-samples
    Downloads: 29 This Week
    Last Update:
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  • 15
    Jimm is an ICQ clone for mobile devices, such as celluluar phones. It is written in Java 2 Micro Edition (MIDP) and uses protocol version 8. Jimm is not affiliated with or endorsed by ICQ, Inc.
    Downloads: 4 This Week
    Last Update:
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  • 16
    Program suite for model railroaders, mainly to support operation on modular railroad setups, features model time clock, computer based train dispatching and more
    Downloads: 6 This Week
    Last Update:
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  • 17
    JAlma is Java Astronomical Almanac.
    Downloads: 4 This Week
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  • 18
    This is a program for transliteration between cyrillic (Bulgarian version) and latin (English version) alphabets.
    Downloads: 3 This Week
    Last Update:
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  • 19
    The Password tools bundle is one application combining three tools - the Analyser (shows the "strength" of your password, the Generator (generates "strong" passwords) and the Manager (stores passwords securely using Rijndael).
    Downloads: 2 This Week
    Last Update:
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  • 20
    AndroidRate

    AndroidRate

    Library to help you promote your Android app

    AndroidRate is a library to help you promote your Android app by prompting users to rate the app after using it for a few days.
    Downloads: 1 This Week
    Last Update:
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  • 21
    DataVision is a reporting tool similar to Crystal Reports. DV supports many data sources (JDBC, files) and many output formats (HTML, XML, PDF, LaTeX, Excel, delimited files, DocBook). DV includes a GUI editor. DV is embeddable. Reports are XML-based.
    Downloads: 1 This Week
    Last Update:
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  • 22
    This if calculator for complex numbers. It works with algebraic and trigonometrical form and has multiple memory slots. There are many mathematical functions like sin, cos and etc.
    Downloads: 1 This Week
    Last Update:
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  • 23
    OpenCards is a flashcard learning extension for OpenOffice Impress. The basic idea of OpenCards is to use slide-titles as flashcard fronts and the slide contents as their backs.
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    Downloads: 1 This Week
    Last Update:
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  • 24
    AccounteX is an IP accounting system based on the IP Stat program. It has many exciting features like fully customizable web traffic accounting and user access control by many different values. information service and web statistics and administration.
    Downloads: 0 This Week
    Last Update:
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  • 25
    This GUI application simplifies the calculation of amortization of bond premiums in simple java. This gives a user a feel of simplicity and accurate data for investments in bonds.
    Downloads: 0 This Week
    Last Update:
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