Linux-Based Billing And Business Application Server For FREE use.
Open Source Openbravo POS convert to Commercial Retail ERP and POS
Open Source Integrated Hospital Information Management System
Small Business Appliance
Free & Open Source Invoice App for Freelancers & Small Businesses
A super simple way to create & send invoices, receive payments online
Baraza Business Management System, a product of Openbaraza
The Open Source Invoice Management Software
Application for tracking customers, clients, accounts, etc. PHP/MDB2
jBilling is a web-based enterprise billing system.
Captures time & expense by project and account; generates invoice
Intuitive quote, delivery note, invoice, payments management app
Software developed for the purposes of czela.net o.s.