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

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  • 1
    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: 69 This Week
    Last Update:
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  • 2
    OpenMoka is a simple ERP software (gestionale) written in java, jsp, jsf to manage a small company. You can create invoices (fattura/fatture), orders and control your customers(clienti). It is translated in english and italian.
    Downloads: 0 This Week
    Last Update:
    See Project
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