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C++ Business Software

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

  • 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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  • Manage your Classes Icon
    Manage your Classes

    For educational organizations looking for a class management software of size of school, academy or studio

    DreamClass helps you efficiently manage all of your processes. Enjoy professional school management for any educational institution, in minutes!
    Learn More
  • 1
    KeePass

    KeePass

    A lightweight and easy-to-use password manager

    KeePass Password Safe is a free, open source, lightweight, and easy-to-use password manager for Windows, Linux and Mac OS X, with ports for Android, iPhone/iPad and other mobile devices. With so many passwords to remember and the need to vary passwords to protect your valuable data, it’s nice to have KeePass to manage your passwords in a secure way. KeePass puts all your passwords in a highly encrypted database and locks them with one master key or a key file. As a result, you only have to remember one single master password or select the key file to unlock the whole database. And the databases are encrypted using the best and most secure encryption algorithms currently known, AES and Twofish. See our features page for details.
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    Downloads: 198,894 This Week
    Last Update:
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  • 2
    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: 15,713 This Week
    Last Update:
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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: 1,597 This Week
    Last Update:
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  • 4
    Windows Calculator

    Windows Calculator

    A simple yet powerful calculator that ships with Windows

    Calculator is the open source version of the Microsoft Windows Calculator application. It is a modern Windows app written in C++ and C#, offering standard, scientific, and programmer modes, unit/currency conversion, date calculations, and history/memory operations. It ships preinstalled with Windows and is actively developed on GitHub. Standard Calculator functionality, which offers basic operations and evaluates commands immediately as they are entered. Scientific Calculator functionality, which offers expanded operations and evaluates commands using the order of operations. Programmer Calculator functionality, which offers common mathematical operations for developers, including conversion between common bases.
    Downloads: 82 This Week
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  • Transform months of data modeling and coding into days. Icon
    Transform months of data modeling and coding into days.

    Automatically generate, document, and govern your entire data architecture.

    Efficiently model your business and data models, and generate code for your data pipelines, data lakehouse, and analytical applications
    Learn More
  • 5
    OSHMI - Open Substation HMI

    OSHMI - Open Substation HMI

    SCADA HMI for substations, IoT and automation applications

    Now with IEC61850 support! This project combines existing open source projects and tools to create a very capable, mobile and cloud-friendly HMI system that can rival proprietary software. This approach makes it possible to join forces of each project (Chromium, SVG/HTML5, PHP, Lua, SQLite, Inkscape, Lib61850, OpenDNP3, Nginx, Vega, PostgreSQL, Grafana,…) to achieve a great set of open, evergreen, modular and customizable tools for building great HMIs for automation projects. This is not a toy project! It's been actually used in dozens of substations up to 230kV level and also in control centers with configurations up to 70.000 tags. Feel free to ask questions in the "Discussion" section. Help sponsoring OSHMI here https://github.com/sponsors/riclolsen. >>> Have a look also at my new SCADA project here: https://github.com/riclolsen/json-scada
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    Downloads: 30 This Week
    Last Update:
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  • 6
    A distributed, peer-to-peer, server-less communication & messaging solution for JAVA (JMS), C++ and .NET applications, integrates with JBoss, WebLogic & WebSphere. Offers guaranteed delivery, security and transactions. Supports TCP, SSL & HTTP protocols.
    Downloads: 48 This Week
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  • 7
    RemoteCalendars is a COM-.NET Add-in for Outlook 2003/2007, written in C#. After installing this plugin, every Outlook user should be able to subscribe, reload and delete a generic remote iCalendar (RFC 2445) from Outlook 2003/2007.
    Downloads: 7 This Week
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  • 8
    NaroCAD
    NaroCAD is a fully fledged and extensible 3D parametric modeling CAD application. It is based on OpenCascade.
    Downloads: 6 This Week
    Last Update:
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  • 9
    ProteoWizard
    ProteoWizard development moved to GitHub in 2018. The ProteoWizard Library is a set of software libraries and tools for rapid development of proteomics data analysis software. The libraries are cross-platform and built from the ground up using modern C++ techniques.
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    Downloads: 22 This Week
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  • Respond 100x faster, more accurately, and improve your documentation Icon
    Respond 100x faster, more accurately, and improve your documentation

    Designed for forward-thinking security, sales, and compliance teams

    Slash response times for questionnaires, audits, and RFPs by up to 90%. OptiValue.ai automates the heavy lifting, freeing your team to focus on strategic priorities with intuitive tools for seamless review and validation.
    Learn More
  • 10
    A quantitative finance C++ library for modeling, pricing, trading, and risk management in real-life. A cross-platform free/open-source tool for derivatives and financial engineering.
    Downloads: 4 This Week
    Last Update:
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  • 11
    SAFMQ: Store and Forward Message Queue, message oriented middleware. Uses include Assured Async Messaging, SOA, Delayed/Batch, and Cluster/Grid Computing. The SAFMQ server provides cross platform communication among C++, PHP, Java, and .NET clients.
    Downloads: 13 This Week
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  • 12
    MDictionary - mobile dictionary program
    Simple plugin based dictionary program for Symbian cellular phones.
    Downloads: 2 This Week
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  • 13
    LibrePLM

    LibrePLM

    LibrePLM integrates CAD editors in Odoo / LibrERP

    Save and manage Engineering informations from CAD system directly in Odoo or LibrERP. Integrated in CAD system, allows complete Product Lifecycle control. Reduce time to market, improve your business and avoid trivial errors. Server New Release : 2025 Q3 - Release on Odoo version 19.0. Client New Release : 2026 Q1 - Added Draftsight integration. Supported: Windows 11. Added new tool GetNodeID to help you asking activation code. Have more info : https://sourceforge.net/p/libreplm/wiki/Home Odoo is a product of Odoo SA world class leader in Open Source ERP system. Visit: http://www.odoo.com LibreERP and LibrePLM are products of Codebeex srl. Visit: http://www.codebeex.com Download Free Trial Client. Need support, customizations, more? Ask to: info@codebeex.com
    Downloads: 6 This Week
    Last Update:
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  • 14

    Font Converter

    It is a tool coverts unicode Kartika Malayalam to ISFOC Malayalam

    Font Converter is a utilty for windows XP, Windows 7, Windows 8 and Windows 10 that converts Unicode(UTF-16) Kartika Malayalam paragraphs(Usually written in web and output of Google input tools) to ISFOC ML-TT font paragraphs. The output of this program can be used in Malayalam Notice/Poster/Any designs this will make the designs look stylish and amazing.. Don't worry if your browser shows this download could harm your computer, Its due to missing of Digital Signature. Administrator privileges required to run the program. The application is fully opensource. You can view the code or report the issues at https://github.com/bineeshhd/FontConverter.
    Downloads: 1 This Week
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  • 15
    Logician is a JavaScript and C++ cross-platform Decision Table and XML based Rules Engine. Decision tables provide an efficient, easy way for expressing complex rules and deploying to the client on both the desktop and in a web browser.
    Downloads: 1 This Week
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  • 16
    A medical information system for Windows-based systems (95-XP/CE/PocketPC) based on Open Source platforms
    Downloads: 1 This Week
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  • 17
    PMViewer is a Visualization tool for Astrophysical N-Body and Hydro Simulations. GADGET-2 data support.With/Without periodical boundary conditions.Snapshot of scene in PPM and GIF formats.Flying in 3D space. Active/Passive Stereo 3D support.
    Downloads: 1 This Week
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  • 18
    This site hosts the source code for C++ version of the Broker for SBW, NOM module, advanced simulation suite, analysis applications and model editors.
    Downloads: 1 This Week
    Last Update:
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  • 19
    Zaval Advanced TV Guide (also known as ATV) is a small and nifty program that allows TV schedule viewing with your PDA, so you will be always informed on what's on TV. With our product you can do TV programs tracking and much more!
    Downloads: 1 This Week
    Last Update:
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  • 20
    This is the wrapper for the Applix TM1 for .Net development. Written entirely in unmanaged c++ then exposed to the Managed c++. Works with TM1 8.0 and 9.0. Most of the TM1 API functions are ported and may require some changes in the environment variables
    Downloads: 0 This Week
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  • 21
    Coding convenient Aero & Astro functions into one easy to use package. From rocket engine design, to flight and space dynamics.
    Downloads: 0 This Week
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  • 22
    Algorithmic Trading implementation
    Downloads: 0 This Week
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  • 23
    Analytic Toolkit
    The purpose of the project is summarising effort from a number of analytic libraries, adding interactive web-based user interface and making a free open source solution for risk analytics and stress testing. Feb 8, 2012 Paul Glasserman's Importance Sampling and Tail Approximations as well as plain Monte Carlo have been implemented for for the widely used normal copula model of portfolio credit risk. The package includes source code, examples, spreadsheet with results and references to the papers.
    Downloads: 0 This Week
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  • 24
    BigBang/Horizon is a proteomics data analysis pipeline with focus on the shotgun LC/MSMS workflow.
    Downloads: 0 This Week
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  • 25
    Bluetooth Personal Area Network client (PAN) with Support for RADIUS / Bluetooth Network Access Server (Point) (NAS / NAP) with Radius AAA. Project is supported by Nokia. Target BT stacks MS, Widcomm, BlueZ, Affix Blu(etooth) S(ymbian) PAN
    Downloads: 0 This Week
    Last Update:
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