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

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  • 1
    GnuWin

    GnuWin

    Provides native Win32 open source ports and utilities

    GnuWin provides Win32-versions of GNU tools, or tools with a similar open source licence. The ports are native ports, relying only on libraries provided with any modern 32-bits MS-Windows operating system, such as 2000 / XP / Vista / 7
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    Downloads: 36,333 This Week
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  • 2
    gnuplot

    gnuplot

    A portable, multi-platform, command-line driven graphing utility

    A famous scientific plotting package, features include 2D and 3D plotting, a huge number of output formats, interactive input or script-driven options, and a large set of scripted examples.
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    Downloads: 4,468 This Week
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  • 3
    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!
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    Downloads: 2,148 This Week
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  • 4
    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/
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    Downloads: 1,724 This Week
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    Host LLMs in Production With On-Demand GPUs

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

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  • 5
    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: 322 This Week
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  • 6
    The SourceForge OpenRasMol project is an adjunct to the RasMol and OpenrasMol project at http://rasmol.org. It is hoped that the SourceForge OpenRasMol project will provide a convenient focal point for active collaborative contributions.
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    Downloads: 414 This Week
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  • 7
    vDos

    vDos

    Run DOS applications in Windows.

    vDos is specific to run serious (mainly text mode) DOS applications in Windows 32 or 64-bit, Windows 7 or later. You need at least already use such a DOS application to appreciate vDos. If you don’t, want to play with DOS (or its games): vDos isn’t meant for you! Recent versions (latest 2025.05.01) and the vDos forum are now hosted at: https://www.vdos.info
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    Downloads: 122 This Week
    Last Update:
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  • 8
    Floreant POS

    Floreant POS

    Opensource Enterprise Grade Restaurant POS

    Enterprise Grade Point of Sale application for QSR, Casual Dine-In, Fine Dine-In, Cafe and Retail. Established in 2008 Floreant POS has powered 30,000 restaurants in 25 countries around the world. It can run on single or multiple terminals and manage new order, visualize tables, manage kitchen and produce advanced reports. Floreant POS is initiated and maintained by OROCUBE LLC, USA (https://orocube.com) and released under MRPL 1.2, a variant of Mozilla Public License 1.1. http://floreantpos.org/license-html/
    Downloads: 93 This Week
    Last Update:
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  • 9
    Group Office groupware and CRM

    Group Office groupware and CRM

    Take your office and CRM into the cloud!

    Installation instructions can be found here: https://groupoffice.readthedocs.io/en/latest/install/install.html Group Office is an open source groupware application. It makes your daily office tasks easier. Share projects, calendars, files and e-mail online. It is a complete solution for all your online office needs. From a customer phone call to a project and finally an invoice. The support system helps to keep your customers happy. Group Office is fast, secure and has privacy by design. You can stay in full control of your data by self hosting your cloud and e-mail. Our document editing solution keeps all data on the secured server instead of synchronising it to all user devices. GroupOffice is open source and modular. Which means it’s easy to customise and extend. You can turn off and on features and it enables any developer to create new modules for the platform.
    Downloads: 91 This Week
    Last Update:
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    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

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  • 10
    PDFsharp

    PDFsharp

    PDFsharp is a .NET library for creating and modifying PDF documents.

    PDFsharp moved to https://github.com/empira/PDFsharp PDFsharp is a .NET library for creating and modifying Adobe PDF documents programmatically from any .NET language like C# or VB.NET. PDFsharp defines classes for the objects found in PDF files, so you never have to deal with IDs or references directly. The downloads include MigraDoc Foundation, a .NET library for creating documents on the fly (supports PDF and RTF). PDFsharp is the .NET library that easily creates and processes PDF documents on the fly from any .NET language. The same drawing routines can be used to create PDF documents, draw on the screen, or send output to any printer. MigraDoc Foundation is the .NET library that easily creates documents based on an object model with paragraphs, tables, styles, etc. and renders them into PDF, XPS, or RTF.
    Downloads: 78 This Week
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  • 11
    TeamPass

    TeamPass

    cPassMan was renamed to TeamPass

    TeamPass is a collaborative passwords manager. It has been created for managing passwords in a collaborative environment of use such as companies. With TeamPass it is possible to organize passwords in a tree structure, associate information to password. MORE INFORMATION ON TEAMPASS.NET website!
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    Downloads: 78 This Week
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  • 12
    Radiance

    Radiance

    Highly accurate ray-tracing software system for UNIX computers

    Radiance is a free, highly accurate ray-tracing software system for UNIX computers. It is a suite of programs designed for the analysis and visualization of lighting in design. Radiance is superior to simpler lighting calculation and rendering tools in that there are no limitations on the geometry or the materials that may be simulated. Scene geometry, materials, luminaires, time, date and sky conditions (for daylight calculations) are specified; spectral radiance (ie. luminance + color), irradiance (illuminance + color) and glare indices are calculated. Simulation results may be displayed as color images, numerical values and contour plots. Radiance is useful for architects and engineers in predicting illumination, visual quality and appearance of innovative design spaces; and for researchers in evaluating new lighting and daylighting technologies.
    Downloads: 12 This Week
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  • 13
    CiviCRM

    CiviCRM

    Growing and Sustaining Relationships

    CiviCRM is an open source and freely downloadable constituent relationship management solution for advocacy, non-profit and other organizations. Learn more at http://civicrm.org
    Downloads: 62 This Week
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  • 14
    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.
    Downloads: 34 This Week
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  • 15
    Onfinity All-in-One ERP

    Onfinity All-in-One ERP

    Onfinity is a modern, AI driven All-in-One ERP

    Onfinity (formerly Vienna Advantage) is a modern and future oriented ERP developed in C#.Net, jQuery, PostgreSQL and React Native Mobile app. Functional Details at: https://www.onfinity.io/erp-editions-comparison.php Open Source Modules: - Finance - Budgeting - Order Management - Asset Management - HR Management - Project Management - Customer Relationship Management - eCommerce and more Based on a No-Low Code Framework, Inbuilt Workflow Editor, Report Writer and more, it comes with an excellent Architecture. Community comes with Free community support, Access to Market with all Updates and Patches and implementation tools.
    Downloads: 57 This Week
    Last Update:
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  • 16
    PDF Presenter
    An easy to use presentation software with focus on PDF documents. External display / projector presentations: PDF, images, text and whiteboard with annotations; intuitive user interface, optimal mouse and pen input handling.
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    Downloads: 59 This Week
    Last Update:
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  • 17
    GloboNote

    GloboNote

    Create sticky notes, to-do list, journals & reminders all in one app

    GloboNote is a free and easy to use desktop note taking application. It lets you create sticky notes, to-do lists, journals, reminders and other notes in one place. There are no limits to the number of sticky notes you can create. Notes can be organize by groups and search using the search tool. GloboNote can be run in any OS that has Java 8 installed.
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    Downloads: 32 This Week
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  • 18
    Scannt mehrseitige Dokumente (s/w)*speichert das Ergebnis als PDF in minimierter Dateigröße auf dem Desktop*Wandelt Bilddateien in PDF*Scans multipage documents (b/w)*saves the result as PDF in minimal filesize on the Desktop*Converts images to PDF
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    Downloads: 34 This Week
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  • 19
    CoBIS Microfinance Software
    Affordable, Easy 2 Use, Robust Microfinance Software that efficiently manages Micro-Banking & SACCO Operations. With several satisfied customers we continue to offer Limitless Capabilities. Note: This Project moved to www.cobismfisolutions.com CoBIS Features: Manage Clients Personal data Create & Manage Savings Accounts Savings Interest Posting. Minimum Savings Balance. Manage Term Deposits, Shares Create & Manage Loans and Automated Loan Repayments from Client Savings Account Loan Interest Computation Options: Flat, Declining Balance, Declining Balance Equal Principle. Over 100 Standard Reports Complete General Ledger Accounting Trial Balance, Income Statement, Balance Sheet, Journal Transactions, Daily Expenditure Posting Teller User Debit Limit SMS Alerts Manage User Permissions Demo Login Details Username: cobisdemoaccount Password: @demo2024 N.B For an Implementation Quotation for your Financial Institution / Bank, Contact: info@cobismfisolution.com
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    Downloads: 19 This Week
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  • 20
    i-doit - Open Source CMDB & ITSM Tool

    i-doit - Open Source CMDB & ITSM Tool

    ITIL conform CMDB solution for documenting your entire IT landscape

    i-doit is a web based IT documentation and CMDB. i-doit documents IT-systems and their changes, defines emergency plans, displays vital information and helps to ensure a stable and efficient IT operation: The technical documentation: This means that all information can be organised (details flexibly adjusted), stored and maintained in one place. This allows simple Helpdesk, Support and Planning functions and provides the basis for quality assurance and certification. i-doit allows services to be documented as a logical grouping of objects placed in relation to each other. This provides the basis for (ITIL) processes such as Change and Problem Management, helps to control and manage the SLA (Service Level Agreement) or the communication with users. Its interfaces to other ITSM applications (like Nagios, Request Tracker etc.) allow the entering of data only once in the ITSM environment. i-doit maintains one holistic view of the operational situation.
    Downloads: 27 This Week
    Last Update:
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  • 21
    PortableSigner
    PortableSigner is a tool for digital signing (with X.509 certificates) of PDF files
    Downloads: 20 This Week
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  • 22
    Open Workbench is a desktop application for project management and scheduling in which you can define a work breakdown structure, set dependencies and resource constraints, assign resources to tasks, auto schedule and then monitor progress.
    Downloads: 26 This Week
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  • 23
    JOrtho - Java Orthography Checker
    JOrtho is a spell checker for Java. The library works with any JTextComponent from the swing framework. The dictionary is based on the free Wiktionary.org and applicable for multiple languages. You can select the spellchecking language via context menu.
    Downloads: 20 This Week
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  • 24
    ZenTao project management software

    ZenTao project management software

    Open source Scrum tool and an ALM solution

    ZenTao is an open source Scrum tool for application development projects with features including Backlog Management✓ Sprint and task✓ bug tracking✓ Scrum✓ Waterfall✓ Roadmap✓ Burndown✓ Kanban✓ SaaS✓ Self Hosting✓
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    Downloads: 17 This Week
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  • 25
    osFinancials Accounting Software

    osFinancials Accounting Software

    osfinancials accounting and business processing software

    osFinancials is a free accounting package, easy to install Stock control and point of sales integrated with good support and plugins. Import from osCommerce, virtue-mart magento zenchart etc. Full reportdesigner reportman and all reports are made in reportman so can be adjusted to your needs. Full professional accounting package with support. Now with support for 3 databases Firebird Mysql Postgress See our instruction video http://www.youtube.com/watch?v=dQKd1y6rNPc&feature=youtu.be
    Downloads: 14 This Week
    Last Update:
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