Free and Open Source Invoicing, Expenses & Time-Tracking
Accounting system for smaller companies written in GnuCobol.
Accounting & Best Practice Business Administration System
Open source ERP and CRM web software for business
Accounting, invoicing, inventory and payroll software for Linux
JEE based Accounting web-application.
Mutasyon is a script can add customer, products, inventory or invoice
An accounting / educational / MRP / ERP / CRM system for SMEs