Free Desktop book-keeping software for small-businesses & freelancers
Free and Open Source Invoicing, Expenses & Time-Tracking
Simple and elegant invoicing solution
Empower your hosting business with FOSSBilling
Open Source Metering and Usage Based Billing API
Open-source pricing and billing infrastructure
Open Source Integrated Hospital Information Management System
Easy to use, modern and reliable POS solution.
Open Source Openbravo POS convert to Commercial Retail ERP and POS
Accounting system for smaller companies written in GnuCobol.
Accounting, invoicing, inventory and payroll software for Linux
A powerful, self-hosted personal finance app that is easy to use
Reverse engineering API
QRK Registrierkassen Software für kleine Betriebe.
Linux-Based Billing And Business Application Server For FREE use.
A basic PHP/MySQL/HTML Billing APP. Meant for developers learning.
Small Business Appliance
Erstellt für Sie Angebote/Rechnungen/Mahnungen und mehr
Free & Open Source Invoice App for Freelancers & Small Businesses