Open Source Java Software

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.

  • Cloud tools for web scraping and data extraction Icon
    Cloud tools for web scraping and data extraction

    Deploy pre-built tools that crawl websites, extract structured data, and feed your applications. Reliable web data without maintaining scrapers.

    Automate web data collection with cloud tools that handle anti-bot measures, browser rendering, and data transformation out of the box. Extract content from any website, push to vector databases for RAG workflows, or pipe directly into your apps via API. Schedule runs, set up webhooks, and connect to your existing stack. Free tier available, then scale as you need to.
    Explore 10,000+ tools
  • Nonprofit Budgeting Software Icon
    Nonprofit Budgeting Software

    Martus Solutions provides seamless budgeting, reporting, and forecasting tools that integrate with accounting systems for real-time financial insights

    Martus' collaborative and easy-to-use budgeting and reporting platform will save you hundreds of hours each year. It's designed to make the entire budgeting process easier and create unlimited financial transparency.
    Learn More
  • 1

    MinGW - Minimalist GNU for Windows

    A native Windows port of the GNU Compiler Collection (GCC)

    MinGW: A native Windows port of the GNU Compiler Collection (GCC), with freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All of MinGW's software will execute on the 64bit Windows platforms.
    Leader badge
    Downloads: 2,794,166 This Week
    Last Update:
    See Project
  • 2
    SAP NetWeaver Server Adapter for Eclipse

    SAP NetWeaver Server Adapter for Eclipse

    Integrates Eclipse with the SAP NetWeaver Application Server

    Integrates Eclipse with the SAP NetWeaver Application Server.
    Leader badge
    Downloads: 284,198 This Week
    Last Update:
    See Project
  • 3
    TurboVNC

    TurboVNC

    High-speed, 3D-friendly, TightVNC-compatible remote desktop software

    TurboVNC is a high-performance, enterprise-quality version of VNC based on TightVNC, TigerVNC, and X.org. It contains a variant of Tight encoding that is tuned for maximum performance and compression with 3D applications (VirtualGL), video, and other image-intensive workloads. TurboVNC, in combination with VirtualGL, provides a complete solution for remotely displaying 3D applications with interactive performance. TurboVNC's high-speed encoding methods have been adopted by TigerVNC and libvncserver, and TurboVNC is also compatible with any other TightVNC derivative. TurboVNC forked from TightVNC in 2004 and still covers all of the TightVNC 1.3.x features, but TurboVNC contains numerous feature enhancements and bug fixes relative to TightVNC, and it compresses 3D and video workloads much better than TightVNC while using generally only 5-20% of the CPU time of the latter. Using non-default settings, TurboVNC can also be made to compress 2D workloads as "tightly" as TightVNC.
    Leader badge
    Downloads: 128,410 This Week
    Last Update:
    See Project
  • 4
    GeoServer
    GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. Designed for interoperability, it publishes data from any major spatial data source using open standards: WMS, WFS, WCS, WPS and REST
    Leader badge
    Downloads: 38,711 This Week
    Last Update:
    See Project
  • MeridianLink One: A Unified Banking Software Solution for All SaaS Products and Services Icon
    MeridianLink One: A Unified Banking Software Solution for All SaaS Products and Services

    Credit unions and banks looking to deliver seamless, secure digital account opening experiences

    MeridianLink® Opening simplifies and accelerates digital account opening with a streamlined platform built for speed, security, and scalability. It supports a full suite of deposit products—checking, savings, CDs, and IRAs—while delivering a consistent, omnichannel experience across all channels. Through seamless integration with core and digital banking systems, as well as hundreds of trusted third-party providers, it automates data entry, ID verification, credit checks, and fraud protection. Flexible workflows and intelligent decisioning help institutions increase conversions, reduce abandonment, and cross-sell more effectively—all while supporting compliance and a frictionless consumer experience.
    Learn More
  • 5
    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.
    Leader badge
    Downloads: 30,921 This Week
    Last Update:
    See Project
  • 6
    Freeplane

    Freeplane

    Application for Mind Mapping, Knowledge and Project Management

    Application for Mind Mapping, Knowledge Management, Project Management. Develop, organize and communicate your ideas and knowledge in the most effective way. -> https://freeplane.org/ -> https://github.com/freeplane/freeplane
    Leader badge
    Downloads: 27,263 This Week
    Last Update:
    See Project
  • 7
    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: 18,986 This Week
    Last Update:
    See Project
  • 8
    Doxygen
    Doxygen is a JavaDoc like documentation system for C++, C, Java and IDL.
    Leader badge
    Downloads: 10,760 This Week
    Last Update:
    See Project
  • 9
    Technical analysis library with indicators like ADX, MACD, RSI, Stochastic, TRIX... includes also candlestick pattern recognition. Useful for trading application developpers using either Excel, .NET, Mono, Java, Perl or C/C++.
    Leader badge
    Downloads: 13,345 This Week
    Last Update:
    See Project
  • Linxup Dash Cam for Fleet Management Icon
    Linxup Dash Cam for Fleet Management

    For companies with vehicles, fleets, assets, or equipment to track, from one piece to thousands.

    Linxup is a leading provider of vehicle and asset tracking solutions for fleets and service companies in a variety of industries. Linxup delivers powerful but easy to use GPS solutions through a software-as-a-service (SaaS) platform. Our data gives businesses the tools they need to improve fleet management, increase mobile worker productivity, and reduce operating costs. Specialty products such as lawn mower tracking and dash cameras give customers every tool they need to improve, grow, and protect their businesse
    Learn More
  • 10
    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
    Leader badge
    Downloads: 7,226 This Week
    Last Update:
    See Project
  • 11
    Logisim
    An educational tool for designing and simulating digital logic circuits, featuring a simple-to-learn interface, hierarchical circuits, wire bundles, and a large component library. As a Java application, it can run on many platforms.
    Leader badge
    Downloads: 6,674 This Week
    Last Update:
    See Project
  • 12
    FreeMind

    FreeMind

    A premier mind-mapping software written in Java

    A mind mapper, and at the same time an easy-to-operate hierarchical editor with strong emphasis on folding. These two are not really two different things, just two different descriptions of a single application. Often used for knowledge and content management.
    Leader badge
    Downloads: 3,334 This Week
    Last Update:
    See Project
  • 13
    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: 3,537 This Week
    Last Update:
    See Project
  • 14
    OpenCV

    OpenCV

    Open Source Computer Vision Library

    The Open Source Computer Vision Library has >2500 algorithms, extensive documentation and sample code for real-time computer vision. It works on Windows, Linux, Mac OS X, Android, iOS in your browser through JavaScript. Languages: C++, Python, Julia, Javascript Homepage: https://opencv.org Q&A forum: https://forum.opencv.org/ Documentation: https://docs.opencv.org Source code: https://github.com/opencv Please pay special attention to our tutorials! https://docs.opencv.org/master Books about the OpenCV are described here: https://opencv.org/books.html
    Leader badge
    Downloads: 2,988 This Week
    Last Update:
    See Project
  • 15
    Angry IP Scanner

    Angry IP Scanner

    A cross-platform network scanner that is fast and simple to use

    Angry IP scanner is fast and friendly network scanner for Windows, Linux, and Mac. It is very extensible, allowing it to be used for very wide range of purposes, with the primary goal of being useful to network administrators.
    Leader badge
    Downloads: 2,472 This Week
    Last Update:
    See Project
  • 16
    FreeImage is a library project for developers who would like to support popular graphics image formats (PNG, JPEG, TIFF, BMP and others). Some highlights are: extremely simple in use, not limited to the local PC (unique FreeImageIO) and Plugin driven!
    Leader badge
    Downloads: 1,591 This Week
    Last Update:
    See Project
  • 17
    LOTRO Companion

    LOTRO Companion

    A companion for your LOTRO activities

    LOTRO Companion is a desktop application. It manages characters of the Lord of the Rings Online (LOTRO) MMORPG. It has 3 main goals: - track the status of one or several characters: current gear, deeds, quests, collections... - simulate gear/virtues, compute result stats and analyze stats contributions - lore database: quests, items, deeds, mounts, pets... Character data is imported from the game client running locally. See https://discord.gg/t2J4GDq See https://www.facebook.com/lotrocompanion/
    Leader badge
    Downloads: 2,650 This Week
    Last Update:
    See Project
  • 18
    OmegaT - multiplatform CAT tool

    OmegaT - multiplatform CAT tool

    The free computer aided translation (CAT) tool for professionals

    OmegaT is a free and open source multiplatform Computer Assisted Translation tool with fuzzy matching, translation memory, keyword search, glossaries, and translation leveraging into updated projects.
    Leader badge
    Downloads: 1,455 This Week
    Last Update:
    See Project
  • 19
    ProjectLibre - Project Management

    ProjectLibre - Project Management

    #1 alternative to Microsoft Project : Project Management & Gantt Chart

    ProjectLibre project management software: #1 free alternative to Microsoft Project w/ 7.8M+ downloads in 193 countries. ProjectLibre is a replacement of MS Project & includes Gantt Chart, Network Diagram, WBS, Earned Value etc. This site downloads our FOSS desktop app. 🌐 Try the Cloud: http://www.projectlibre.com/register/trial We also offer ProjectLibre Cloud—a subscription, AI-powered SaaS for teams & enterprises. Cloud supports multi-project management w/ role-based access, central resource pool, Dashboard, Portfolio View 💡 The AI Cloud version can generate full project plans (tasks, durations, dependencies) from a natural language prompt — in any language. 🌐 Try the Cloud: http://www.projectlibre.com/register/trial 💻 Mac tip: If blocked, go to System Preferences → Security → Allow install 🏆 InfoWorld “Best of Open Source” • Used at 1,700+ universities • 250K+ community 🙏 Support us: http://www.gofundme.com/f/projectlibre-free-open-source-development
    Leader badge
    Downloads: 8,334 This Week
    Last Update:
    See Project
  • 20
    Pentaho

    Pentaho

    Pentaho offers comprehensive data integration and analytics platform.

    Pentaho couples data integration with business analytics in a modern platform to easily access, visualize and explore data that impacts business results. Use it as a full suite or as individual components that are accessible on-premise, in the cloud, or on-the-go (mobile). Pentaho enables IT and developers to access and integrate data from any source and deliver it to your applications all from within an intuitive and easy to use graphical tool. The Pentaho Enterprise Edition Free Trial can be obtained from https://pentaho.com/download/
    Leader badge
    Downloads: 1,475 This Week
    Last Update:
    See Project
  • 21
    Roblox anti-AFK

    Roblox anti-AFK

    Never get AFK kicked from Roblox again!

    Never get AFK-kicked again! With Roblox anti-AFK you can easily: grind, farm, chill and whatever you want! It's very easy to use. Just press "Start!", and good luck being AFK! You don't even need to have the Roblox window open. Roblox anti-AFK allows you to AFK in Roblox while you can still use your device. I hope you'll make lots of progress in your favourite simulators! Feel free to add suggestions! =====Version: 2.9.1===== Requires Java to be installed to run. You can download it here if you don't have it already: https://www.java.com/download/manual.jsp If you have trouble opening the program, the first post may help: https://sourceforge.net/p/roblox-anti-afk/tickets/7/?limit=25
    Leader badge
    Downloads: 1,139 This Week
    Last Update:
    See Project
  • 22
    A home for additional useful tasks and types for Ant (http://ant.apache.org).
    Leader badge
    Downloads: 1,528 This Week
    Last Update:
    See Project
  • 23
    JasperReports Library

    JasperReports Library

    Free Java Reporting Library

    JasperReports Library is the world's most popular open source business intelligence and reporting engine. It is entirely written in Java and it is able to use data coming from any kind of data source and produce pixel-perfect documents that can be viewed, printed or exported in a variety of document formats including HTML, PDF, Excel, OpenOffice and Word. The project is also available at: https://github.com/TIBCOSoftware/jasperreports Jaspersoft Studio is the open source report designer for the JasperReports Library. https://community.jaspersoft.com/project/jaspersoft-studio JasperReports Server is the most popular open source interactive reporting and analytics server built-on JasperReports Library. https://community.jaspersoft.com/project/jasperreports-server JasperReports IO is for reporting and data visualization in a world of cloud, microservices, and DevOps. https://community.jaspersoft.com/project/jasperreports-io
    Leader badge
    Downloads: 1,192 This Week
    Last Update:
    See Project
  • 24
    PMD

    PMD

    A source code analyzer

    PMD is a source code analyzer. It finds common programming flaws like unused variables, empty catch blocks, unnecessary object creation, and so forth. It supports Salesforce.com Apex, Java, JavaScript, XML, XSL. Additionally it includes CPD, the copy-paste-detector. CPD finds duplicated code in Java, C, C++, C#, PHP, Ruby, Fortran, JavaScript, Matlab, Swift. You can fork us on https://github.com/pmd
    Leader badge
    Downloads: 1,117 This Week
    Last Update:
    See Project
  • 25
    TV-Browser - A free EPG

    TV-Browser - A free EPG

    Ad free open source TV guide for more than 1000 channels.

    TV-Browser is a java-based TV guide which can be easily extended with lots of plugins. It is designed to look like your paper TV guide.
    Leader badge
    Downloads: 1,116 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next