Browse free open source Business software and projects for Windows and Desktop Operating Systems 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
    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: 501,180 This Week
    Last Update:
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  • 2
    Dolibarr ERP - CRM

    Dolibarr ERP - CRM

    Open source ERP and CRM web software for business

    Dolibarr ERP - CRM is an easy to use ERP and CRM open source software package (run with a web php server or as standalone software) for businesses, foundations or freelancers (prospect, invoicing, inventory, warehouse, order, shipment, POS, members for foundations, bank accounts...). Dolibarr is also available with auto-installers for users with no technical knowledge to install Dolibarr and all its prerequisites (Apache, Mysql, PHP) with just one package. Available platforms for such packages are: Windows, Debian, Ubuntu, Mint, Redhat, Fedora, OpenSuse, Mandriva, Mageia. Other platform can use the generic distribution. This is a modular product, than can be enhanced with tons of external modules (to provide you features not available by default) from https://www.dolistore.com Download Dolibarr ERP - CRM here or sign up for 15-day free trial of the cloud-based application with free updates and support at one of the Cloud providers https://saas.dolibarr.org/
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    Downloads: 4,635 This Week
    Last Update:
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  • 3
    BeeBEEP (Free Office Messenger)

    BeeBEEP (Free Office Messenger)

    You can message and share files inside your intranet without a server.

    BeeBEEP is a secure (encryption based on Rijndael Algorithm, AES) peer to peer office messenger. You can talk and send files with all your colleagues inside a local area network such of an office, home or internet cafe without a server. BeeBEEP works also with VPNs. This serverless application is indispensable in all those places where privacy and security an essential requirement. For more info visit: https://www.beebeep.net
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    Downloads: 2,065 This Week
    Last Update:
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  • 4
    TinyReminder

    TinyReminder

    Tiny reminder with very simple user interface and no installation

    (Translations needed - see Wiki for the details.) Tiny reminder with very simple user interface and no instalation, for people, who have no time to learn how to use it. Reminds once by chosen time period or repeatedly on regular time intervals basis. Elements of the interface dynamically changes to give the user instant grafical feedback of his or her action. Even after launching the reminder, all chosen settings may be dynamically changed by double clicking the icon in the system tray. NOTE: It requires Java Runtime Environment 5 or higher.
    Downloads: 1 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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  • 5
    Online project management and issue tracking with team collaboration, custom fields and forms, JasperReport reporting, user management, multiple access levels, tasks, projects, time tracking, task change history, multiple attachments, Gantt graphs.
    Downloads: 0 This Week
    Last Update:
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  • 6
    LedgerSMB

    LedgerSMB

    Building High Quality ERP and Accounting Software for SMB & SME

    LedgerSMB is an ERP, featuring accounting (including AR, AP, and GL), quotation and order management, and more, for businesses with small to medium transaction volumes. The system has been shown to easily handle thousands of AR/AP transactions per week. Data integrity, security, quality, and responsiveness are key values for our community, both among the developers and, we hope, the users. Additionally we aim to make LedgerSMB into a platform to integrate with, or even serve as a framework for building, other applications. We highly value community contributions and aim to stimulate growth through a broad community by actively providing support and documentation.
    Downloads: 0 This Week
    Last Update:
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  • 7
    PXell

    PXell

    PXell - Online project management.

    PXell - Online project management with team collaboration, user management, multiple access levels, tasks, projects, and time tracking, task change history, files approval tracking, notes, client project sites, CRM, Gantt graphs...
    Downloads: 0 This Week
    Last Update:
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  • 8
    The Pentaho Personalizer is based on the "dead" project PentahoLooker. The Pentaho Personalizer is sponsored by Lizacom and have a "commercialy" financed core of developers to ensure that the project do not "die" by lack of time or interest.
    Downloads: 0 This Week
    Last Update:
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