Free and Open Source Invoicing, Expenses & Time-Tracking
Empower your hosting business with FOSSBilling
Small Business Appliance
Free & Open Source Invoice App for Freelancers & Small Businesses
Invoice and office utilities program for customer managment
Open Source Invoice Programm for Egroupware
Mutasyon is a script can add customer, products, inventory or invoice
Captures time & expense by project and account; generates invoice
Intuitive quote, delivery note, invoice, payments management app
Free web-based invoicing primarily for Finnish companies
Online invoicing, online invoicing solution, web-based invoicing