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

  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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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
    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
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    4.8 out of 5 stars 230 Reviews
    Downloads: 28,549 This Week
    Last Update:
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  • 2
    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
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    Downloads: 32,378 This Week
    Last Update:
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  • 3
    JSignPdf

    JSignPdf

    Add digital signatures to PDF documents - GUI and CLI, cross-platform

    JSignPdf is a free, open-source Java application for signing PDF documents with digital certificates. It provides a graphical desktop interface for everyday users and a command-line mode for scripted and server-side workflows. Supported capabilities include PKCS#12 keystores, smartcards and hardware tokens (PKCS#11), Windows keystore integration, visible signatures with custom images and positioning, timestamp authority (TSA) support, OCSP/CRL revocation checks, certification signatures, and PDF encryption. Cross-platform (Windows, Linux, macOS), built on the OpenPDF library, and translated into many languages by its community, JSignPdf is a trusted choice for anyone who needs reliable PDF signing without commercial licensing.
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    4.9 out of 5 stars 24 Reviews
    Downloads: 751 This Week
    Last Update:
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  • 4
    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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    4.7 out of 5 stars 77 Reviews
    Downloads: 403 This Week
    Last Update:
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  • 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.
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  • 5
    OpenProj - Project Management

    OpenProj - Project Management

    Open Source desktop project management

    OpenProj is an open-source desktop project management application similar to Microsoft Project. OpenProj has a familiar user interface and even opens existing MS Project files. OpenProj is interoperable with Project, Gantt Charts and PERT charts.
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    3.5 out of 5 stars 103 Reviews
    Downloads: 199 This Week
    Last Update:
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  • 6
    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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    4.9 out of 5 stars 9 Reviews
    Downloads: 82 This Week
    Last Update:
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  • 7
    JExcelApi is a java library which provides the ability to read, write, and modify Microsoft Excel spreadsheets. This project mirrors the files on http://www.jexcelapi.org, which has been known to go down on occasion.
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    4.1 out of 5 stars 15 Reviews
    Downloads: 60 This Week
    Last Update:
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  • 8
    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
    4.8 out of 5 stars 32 Reviews
    Downloads: 21 This Week
    Last Update:
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  • 9
    Writer2LaTeX and Writer2xhtml is a collection of converters from OpenDocument Format (ODF) to LaTeX/BibTeX, HTML+MathML and EPUB. It is delivered as a standalone java library, as a command line application and as extensions for LibreOffice.
    5.0 out of 5 stars 6 Reviews
    Downloads: 9 This Week
    Last Update:
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  • Host LLMs in Production With On-Demand GPUs Icon
    Host LLMs in Production With On-Demand GPUs

    NVIDIA L4 GPUs. 5-second cold starts. Scale to zero when idle.

    Deploy your model, get an endpoint, pay only for compute time. No GPU provisioning or infrastructure management required.
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  • 10
    odt2braille
    odt2braille is a Braille extension to OpenOffice.org Writer. odt2braille enables authors to print documents to a Braille embosser and to export documents as Braille files. The Braille output is well-formatted and highly customizable.
    5.0 out of 5 stars 1 Review
    Downloads: 8 This Week
    Last Update:
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  • 11

    Mr Tooth Dental Software

    The Mr Tooth aims to manage dental clinics

    The software basically consists of a simple and functional application for a dental office, aimed at streamlining administration processes them. Done through an analysis of the data that is processed through reports, did during his visits to the clinic. Through a previously scheduled interview with staff of this clinic noticed the lack of technology making it difficult to register and control the flow of patients and payments.
    5.0 out of 5 stars 3 Reviews
    Downloads: 4 This Week
    Last Update:
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  • 12
    oopinyinguide
    OO Pinyin Guide is a Java extension for OpenOffice 3 or higher. It enables the user to add pinyin transliteration over Chinese characters inside a text document. This tool can be useful for people learning or teaching Chinese.
    3.3 out of 5 stars 3 Reviews
    Downloads: 8 This Week
    Last Update:
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  • 13
    Crack&Pack
    Select a folder and this app would zip every file .Tell it what number of files you can have in the archive and let the app do the job..Simple as 2 click's.And more to come!
    Downloads: 8 This Week
    Last Update:
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  • 14
    OS Optiek is a open source customer relationship management (CRM) software application for opticians.
    Downloads: 7 This Week
    Last Update:
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  • 15
    A JAVA 1.3 library to create simple OpenOffice spreadsheet (ODS) files in an easy way within your Java program.
    5.0 out of 5 stars 1 Review
    Downloads: 3 This Week
    Last Update:
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  • 16
    This project final target is to provide a layer of abstraction between Java and modern desktop operationg system (win32,KDE,Gnome). Actually the first phase of this project will be to create a bridge between Java and Win32 automation.
    Downloads: 4 This Week
    Last Update:
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  • 17
    Analysis

    Analysis

    Application to creating charts.

    The goal of project is delivering useful and simple tools to creating charts. Functionality is provided by modules/plugins (OSGi technology). It allows you to create your plugins or customize Analysis application (by changing installed plugins in application). The Application, thanks to JAVA technology, is portable on the most operating system. In Files page you can find the application and also patches to its.
    Downloads: 3 This Week
    Last Update:
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  • 18
    ODF-UOF Converter provides a way to convert the docs(text/spreadsheet/presentation) between Open Document Format for Office Application(ODF) and Chinese office file format based on XML(UOF).
    Downloads: 3 This Week
    Last Update:
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  • 19
    XFLOW is a pure Open Source J2EE platform for building, executing and managing workflows/business processes. Using XFLOW you can easily workflow-enable your existing applications and components. XFLOW is designed to be extensible, easy to manage & deploy
    Downloads: 3 This Week
    Last Update:
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  • 20
    Encompasing office management healthcare software for medical practices, doctors groups, DMEs, retailers, etc. It does User/patient management, point of sale, scheduling, sign-in, inventory, insurance claims, accouting, etc. Any OS!
    5.0 out of 5 stars 1 Review
    Downloads: 1 This Week
    Last Update:
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  • 21
    openPDF
    openPDF is based on a several open source software products, such as iText, JPedal, CryptoApplet among others. Allow users to view/modify PDF documents and forms, barcodes generation, data extraction and signature validation.
    3.7 out of 5 stars 3 Reviews
    Downloads: 1 This Week
    Last Update:
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  • 22
    Xelem is a compact Java-library to read and write Excel files of type SpreadsheetML. It can produce sophisticated, intricate and complex spreadsheets from within any Java program. And, since the release of xelem.2.0, it can read xml-spreadsheets.
    Downloads: 1 This Week
    Last Update:
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  • 23
    Mass File Renamer

    Mass File Renamer

    mass file renamer

    This is a software to rename all files within a folder with a specified starting name and file extension. CHECK OUT AND SUPPORT MY LATEST ANDROID PROJECTS IN HERE: https://play.google.com/store/apps/developer?id=Deepak+PK
    Downloads: 1 This Week
    Last Update:
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  • 24
    Openlogistics is a web-based E-Logistics solution. Including Enterprise Resource Planning (ERP) module, Supply Chain Management (SCM) module, Customer Relationship Management (CRM) module and Knowledge Management (KM) module.
    Downloads: 1 This Week
    Last Update:
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  • 25
    PPT Remote

    PPT Remote

    A java based presentation controller/remote

    A java based presentation controller/remote CHECK OUT AND SUPPORT MY LATEST ANDROID PROJECTS IN HERE: https://play.google.com/store/apps/developer?id=Deepak+PK
    Downloads: 1 This Week
    Last Update:
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