Open Source Windows Business Software

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

  • All-in-One Payroll and HR Platform Icon
    All-in-One Payroll and HR Platform

    For small and mid-sized businesses that need a comprehensive payroll and HR solution with personalized support

    We design our technology to make workforce management easier. APS offers core HR, payroll, benefits administration, attendance, recruiting, employee onboarding, and more.
  • Total Network Visibility for Network Engineers and IT Managers Icon
    Total Network Visibility for Network Engineers and IT Managers

    Network monitoring and troubleshooting is hard. TotalView makes it easy.

    This means every device on your network, and every interface on every device is automatically analyzed for performance, errors, QoS, and configuration.
  • 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: 27,310 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: 522 This Week
    Last Update:
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  • 3
    AikSaurus is a GPL'd thesaurus library for C++. It returns many results, separated by part-of-speech information. The library itself has no particular GUI, and it can be used with any interface you'd like to create for it.
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    Downloads: 93 This Week
    Last Update:
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  • 4
    Punto de venta libre en español, desarrollado en Delphi con base de datos Firebird. Cuenta con todo lo necesario para llevar el control de un pequeño o mediano negocio incluyendo el concentrado de ventas de todas las sucursales.
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    Downloads: 13 This Week
    Last Update:
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  • Event Management Software Icon
    Event Management Software

    Ideal for conference and event planners, independent planners, associations, event management companies, non-profits, and more.

    YesEvents offers a comprehensive suite of services that spans the entire conference lifecycle and ensures every detail is executed with precision. Our commitment to exceptional customer service extends beyond conventional boundaries, consistently exceeding expectations and enriching both organizer and attendee experiences.
  • 5
    It is an email sender. This software can send your mass marketing bulk email to unlimited mailing list. The program can send via SMTP server, MAPI, or delivers e-mail directly without ISP's mail system. Also includes flexible address filters and rules.
    Downloads: 8 This Week
    Last Update:
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  • 6
    The Life Cycle Assessment Spreadsheet allows you to calculate carbon footprints and other environmental impacts for given product systems. Use requires basic skills in LCA and matrix algebra, but rewards effort with professional analytical tools.
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    Downloads: 11 This Week
    Last Update:
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  • 7
    A simple CPU simulator whose goal is to make assembly learning easier. This goal is reached giving a simple calculator, called ENIAC, with a simple CPU, called vCPU. The vCPU's instructions are very simple and easy to understand.
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    Downloads: 6 This Week
    Last Update:
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  • 8
    A graphical library enabling to design complex graphical components and encapsulting the produced components in java beans.
    Downloads: 9 This Week
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  • 9
    Overactive Logistics is a freight forwarding software solution being developed for the cargo transportation industry. It runs in both web based or stand alone modes and provides a graphical user interface with rich client capabilities.
    Downloads: 2 This Week
    Last Update:
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  • Automated RMM Tools | RMM Software Icon
    Automated RMM Tools | RMM Software

    Proactively monitor, manage, and support client networks with ConnectWise Automate

    Out-of-the-box scripts. Around-the-clock monitoring. Unmatched automation capabilities. Start doing more with less and exceed service delivery expectations.
  • 10
    InvoiceSystem is a program made in Delphi (Kylix in future) to manage invoices, stocks, clients, cash-flow, client status, and many other features. It will support graphics and data export XML, HTML, PDF, Excel, Word and many other formats.
    Downloads: 5 This Week
    Last Update:
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  • 11
    Onix ERP/CRM
    Onix ERP/CRM is an easy to use web application to manage your business (contacts, invoices, orders, products, stocks, agenda, emailings, etc...) for small and large company. It's an opensource and free web application for developers and freelancers. You can install and use it as a standalone application, or online on a mutualized or dedicated server to use it from anywhere. -- Latest version : 0.2 alpha
    Downloads: 5 This Week
    Last Update:
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  • 12
    The objective of the project is to build the first 100% portuguese community built php5 framework. Although with learning porposes in mind, it will be production ready, for small to enterprise sized applications. Built with PHP5.
    Downloads: 4 This Week
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  • 13

    json-scada

    A portable SCADA/IoT platform centered on the MongoDB database server.

    Standard IT tools applied to SCADA/IoT (MongoDB, PostgreSQL/TimescaleDB,Node.js, C#, Golang, Grafana, etc.). MongoDB as the real-time core database, persistence layer, config store, SOE historian. Portability and interoperability over Linux, Windows, x86/64, ARM. Horizontal scalability, from a single computer to big clusters (MongoDB-sharding), Bare Metal, Docker containers, VM, cloud, or hybrid deployments. Unlimited tags, servers, and users. HTML5 Web interface. UTF-8/I18N. Protocols: IEC61850 Client, IEC60870-5-101/104 Client and Server, DNP3 Client, OPC-UA Client/Server, MQTT/Sparkplug-B, Telegraf (various data sources for monitoring like Modbus, SNMP, etc.) Github. project https://github.com/riclolsen/json-scada Requirements for Windows Installer: Windows 10/11 64 bits or Server 2016, Windows PowerShell.
    Downloads: 4 This Week
    Last Update:
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  • 14

    Geometry Dashboard

    A project to create a simple Geometry Calculator

    I apologize for this, but an accident occurred and all of my GeoDash work has been lost. No updates will be coming. To view all of the files available please click on the 'Browse All Files' link under the 'Big Green Download' button above this description.
    Downloads: 2 This Week
    Last Update:
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  • 15
    Transparent Accounting
    Transparent is a small accounting system hoping to clone all functionalities in QuickBooks.
    Downloads: 2 This Week
    Last Update:
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  • 16

    Samkar Retail Management System

    An exquisite RMS/point of sale system with a natural feel.

    Samkar POS & Retail Management System is a database centered system which can be used for managing your SME. Samkar RMS allows users to store almost all of their business' information electronically, including information on sales, employees, properties, customers, vendors and even allows for expansion of the database scope to feature user developments. Most importantly, this information is easily accessible to authorized users and provides a stone-hard wall to unauthorized access. Samkar RMS is highly flexible and can be configured to meet most individual business's needs. It is a multi-user system and can be used by hundreds concurrently. It runs on Microsoft Windows platform (Windows XP SP3 and Newer)
    Downloads: 1 This Week
    Last Update:
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  • 17

    CSV Importer for Unicenta

    Program I made to allow me to import inventory counts into my POS.

    This is a desktop application that makes importing stock quantities into a Unicenta database easy. This application enables a user to select a file, define a Database connection and choose to overwrite or append the data in the database. If a UPC doesn't exist in the products table, it gets rejected because I don't want stock levels for non-existent products. If the CSV file contains invalid data like 1. Empty lines 2. Non-numerical values in the quantity field that line gets rejected and the application proceeds to the next line.
    Downloads: 3 This Week
    Last Update:
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  • 18
    This project consists from a java based framework to create barcode images (EAN13, EAN8, UPCA, UPCE, Code 3 of 9, Codabar, Code 11, Code 93, Code 128, MSI/Plessey, Interleaved 2 of 5, PostNet, etc).
    Downloads: 3 This Week
    Last Update:
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  • 19
    Establish/Maintain DHCP/DDNS/IP registry for small/medium/large scale networks. Easy maintenance and little to no personnel overhead. Provides a fully-automated interface for network registration.
    Downloads: 3 This Week
    Last Update:
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  • 20
    This is a construction management software to measure projects, to make budgets, to control cost, to make reports. The goal of the project is to develop a construction application to do these things.
    Downloads: 3 This Week
    Last Update:
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  • 21
    Mod Direct Panoramic Spectrum Analyzer

    Mod Direct Panoramic Spectrum Analyzer

    Mod Direct Panoramic Spectrum Analyzer

    1. Added the ability to directly work with the chip (parameter "settings.ini" - Direct=1). 2. The possibility of cyclic writing/recording from realtime to a file and subsequent playback from it is added (double click of the left mouse button anywhere in the top spectrogram). The size of the MB file is specified in the settings file (Cyclic file size=100).
    Downloads: 3 This Week
    Last Update:
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  • 22
    Trading platform based on iTrade
    Downloads: 3 This Week
    Last Update:
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  • 23
    A graphical editor based on Visual Syntax of Semantics for Business Vocabulary and Rules(SBVR). SBVR VE is based on eclipse platform. For documentation, please refer to OPAALS deliverable http://files.opaals.org/OPAALS/Year_3_Deliverables/WP10/D10.14.pdf
    Downloads: 1 This Week
    Last Update:
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  • 24
    jOcular

    jOcular

    Optical Design Software for simulating systems of lenses, prisms, etc.

    Optical Design Software for optical systems comprised of light sources, lenses, apertures, prisms, imagers, photometers, etc. Simulate light through the system and compute images and intensities at various locations in the design.
    Downloads: 1 This Week
    Last Update:
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  • 25
    ADCViewer visualizes analog signals coming from a microcontroller board through the serial port.
    Downloads: 2 This Week
    Last Update:
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