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

  • Find Hidden Risks in Windows Task Scheduler Icon
    Find Hidden Risks in Windows Task Scheduler

    Free diagnostic script reveals configuration issues, error patterns, and security risks. Instant HTML report.

    Windows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
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  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
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  • 1
    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++.
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    Downloads: 15,472 This Week
    Last Update:
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  • 2
    OpenMRS

    OpenMRS

    Open source Health IT for the planet

    OpenMRS is a community-developed, open source, enterprise electronic medical record system. Our mission is to improve health care delivery in resource-constrained environments by coordinating a global community to creates and support this software.
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    Downloads: 423 This Week
    Last Update:
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  • 3
    Joget

    Joget

    AI Powered Open Source Platform to Easily Build Enterprise Web Apps

    Joget offers an open-source, AI-powered platform that converges no-code/low-code development with AI to rapidly build and customize enterprise applications at scale. By combining AI with visual app builders—not raw code—Joget makes app generation faster, safer, and more accessible for everyone. With Generative AI and Agentic AI capabilities, Joget Intelligence enables organizations to automate and enhance processes while maintaining oversight and compliance. Unlike typical AI code generation, Joget's visual-first approach ensures applications are maintainable and governed within collaborative human workflows. As an Application and Integration Fabric, Joget connects legacy and modern systems seamlessly. Its extensible, open-source core and plugin architecture offer unmatched flexibility, and its White Label solution allows OEMs and digital solution providers to fully rebrand the platform. Trusted by startups, global enterprises, and government agencies across the globe.
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    Downloads: 140 This Week
    Last Update:
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  • 4
    CoGrOO: Open|LibreOffice Grammar Checker
    CoGrOO (A LibreOffice & OpenOffice.org Grammar Checker), the only open source Portuguese grammar checker that can be used with LibreOffice & OpenOffice.org.
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    Downloads: 73 This Week
    Last Update:
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  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
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  • 5
    Makagiga

    Makagiga

    To-do manager, notepad, RSS reader...

    Makagiga is an open-source, easy-to-use, portable application for doing a variety of tasks, such as todo listing, text editing, or RSS reading. Plugins are used to implement its various capabilities.
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    Downloads: 51 This Week
    Last Update:
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  • 6
    OxygenOffice Professional(OOOP, O2OP)is an enhanced version of free OpenOffice.org what is a multi-platform office productivity suite.OxygenOffice Professional contains more extras like templates, cliparts, samples, fonts and VBA support. Get 3.2.1
    Downloads: 44 This Week
    Last Update:
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  • 7
    IMPORTANT NOTICE: This project has moved to GitHub: https://github.com/sarahtattersall/PIPE Releases will be posted here, but please check on GitHub for the most recent activity. Create, model and analyse Petri nets with a standards-compliant Petri net tool. PIPE2 is the active fork of the Platform Independent Petri net Editor project, which originated at Imperial College London.
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    Downloads: 82 This Week
    Last Update:
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  • 8
    Archimedes: An architecture open CAD
    Archimedes will be a Computer Aided Design (CAD) program developed side by side with architecture offices in order to fulfill all their needs. This way, we hope to develop software better suited for architects than the currently widely used AutoCAD.
    Downloads: 29 This Week
    Last Update:
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  • 9
    Smith Chart Calculator

    Smith Chart Calculator

    Smith Chart Calculator JAVA

    A small tool which allows all basic smith chart actions. This program was created for educational purposes. JAVA RUNTIME REQUIRED Tested on Windows. Some features may not available with other OS (e.g. copy to clipboard) GENERAL PUBLIC LICENSE There is a pdf help file online take a look in the files section. There is also a link available in the program itself.
    Downloads: 29 This Week
    Last Update:
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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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  • 10
    Finanx 12c

    Finanx 12c

    Financial Calculator

    The Finanx 12c is a free software that mimics the HP-12C financial calculator. This software was developed for educational purposes. IT'S NOT RECOMMENDED using this calculator for professional calculations. If you find any bugs, please, let me know. Click "Bugs" in the menu bar to report bugs found.
    Downloads: 17 This Week
    Last Update:
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  • 11
    OpenbravoTech

    OpenbravoTech

    Openbravo ERP is an open-source enterprise resource planning (ERP)

    Openbravo ERP is an open-source enterprise resource planning (ERP) software that helps businesses manage their core business processes, including financial management, purchasing, sales, inventory management, and project management. It is based on a web-based architecture and offers a modular design, allowing businesses to easily customize and extend the software to meet their specific needs. Openbravo ERP is available in both cloud-based and on-premise deployment options and supports multiple languages and currencies. Openbravo POS is an open-source point of sale software designed for retail businesses. It features a web-based interface and runs on various platforms including Windows, Linux, and MacOS. It offers functions such as inventory management, sales reporting, customer management, and support for multiple payment methods. Openbravo POS is highly customizable and can be integrated with other systems such as accounting or e-commerce platforms. Offer Ongoing maintenance
    Downloads: 35 This Week
    Last Update:
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  • 12
    Open DICOM Viewer is a small display of medical images. Aimed at displaying images in a web page or patient CD. Developed in Java 1.6.
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    Downloads: 20 This Week
    Last Update:
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  • 13
    Giacenze Crypto

    Giacenze Crypto

    Programma per il calcolo delle plusvalenze Cripto + analisi CSV CDC

    Il programma permette di calcolare le plusvalenze (calcolate attraverso il metodo del LIFO) derivanti dagli scambi di criptovalute un po' su tutte le piattaforme e sulla Defi, inoltre per gli utenti di Crypto.com c’è anche la possibilità di calcolare saldo e giacenza media della Carta Visa e del Fiat Wallet. Le istruzioni sul funzionamento sono reperibili qua : https://sourceforge.net/p/giacenze-crypto-com/wiki/ISTRUZIONI/ e qua : https://sourceforge.net/projects/giacenze-crypto-com/files/Documentazione/ Per ulteriori info potete unirvi al gruppo telegram https://t.me/+6kfy5mjov-I2ODY8. Codice Sorgente : https://github.com/Lucapasselli/GiacenzeCrypto
    Downloads: 21 This Week
    Last Update:
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  • 14
    SciPlore MindMapping is based on FreeMind but extended with features for students & researchers. It integrates mind maps with reference and pdf management (BibTeX support & PDF Bookmark import). Keywords: Mind maps, Mind Mapping, MindMap, JabRef
    Downloads: 7 This Week
    Last Update:
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  • 15
    Software tools for building interactive information visualization applications. Prefuse supports a rich set of features for data modeling, visualization, animation, and interaction for both Java (prefuse) and Flash (prefuse flare).
    Downloads: 9 This Week
    Last Update:
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  • 16
    MailArchiva is a powerful, full featured email archiving (email archiver) and compliance solution for mail systems such as Microsoft Exchange. It stores all incoming, outgoing and internal emails for long term storage. A web based user interface is avail
    Downloads: 6 This Week
    Last Update:
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  • 17
    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: 7 This Week
    Last Update:
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  • 18
    PdfJumbler
    A simple tool to rearrange/merge/delete pages from PDF files. The modular backend system uses either JPedal or JPod to display PDFs and iText or Apache PDFBox to save them. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Development of this project has moved to GitHub. Please check https://github.com/mgropp/pdfjumbler for current releases! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    Downloads: 6 This Week
    Last Update:
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  • 19
    This is a Hash Calculating tool that calculates MD2,MD5,SHA-1,SHA-256,SHA-384,SHA-512 hash of text or a file. This has GUI developed in java swings.All it needs is sun jre installed.
    Downloads: 10 This Week
    Last Update:
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  • 20
    JHotDraw is a two-dimensional graphics framework for structured drawing editors that is written in Java. It is based on Erich Gamma's JHotDraw, which is copyright 1996, 1997 by IFA Informatik and Erich Gamma.
    Downloads: 6 This Week
    Last Update:
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  • 21
    DataCleaner

    DataCleaner

    Data quality analysis, profiling, cleansing, duplicate detection +more

    DataCleaner is a data quality analysis application and a solution platform for DQ solutions. It's core is a strong data profiling engine, which is extensible and thereby adds data cleansing, transformations, enrichment, deduplication, matching and merging. Website: http://datacleaner.github.io
    Downloads: 7 This Week
    Last Update:
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  • 22
    Il nuovo sistema di gestione documentale italiano, nativamente integrato con funzioni di protocollo, workflow e conservazione sostitutiva.
    Downloads: 7 This Week
    Last Update:
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  • 23
    Turquaz Financial Accounting is a complete double entry finance solution targeting small and medium size enterprizes with Inventory Management, accounts recievable, accounts payable, general ledger, journal, multi currency, advanced report and analysis
    Downloads: 19 This Week
    Last Update:
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  • 24
    PDPM is an automated time tracking & productivity measurement tool for PC/Laptop. The tool runs in the background logging usage statistics and prepares daily reports. Please see more details at http://pdpm.sourceforge.net.
    Downloads: 22 This Week
    Last Update:
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  • 25
    OFBiz, recently changed to The Apache Open For Business Project (or Apache OFBiz), is now managed through the Apache Software Foundation. Apache OFBiz has a full-featured enterprise app framework plus an extensive set of best practices applications.
    Downloads: 6 This Week
    Last Update:
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