Free and Open Source Invoicing, Expenses & Time-Tracking
Open Source Integrated Hospital Information Management System
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.
A billing APP for Equipment Sales/Repair Shops written in MS-Access.
Carting Management System
Shipping biller is benificial tool for generating shipping bills.