Free and Open Source Invoicing, Expenses & Time-Tracking
Accounting & Best Practice Business Administration System
Accounting system for smaller companies written in GnuCobol.
Free Invoice & Billing Software for Windows, Linux & Mac
Linux-Based Billing And Business Application Server For FREE use.
Small Business Appliance
Free & Open Source Invoice App for Freelancers & Small Businesses
Mutasyon is a script can add customer, products, inventory or invoice
Captures time & expense by project and account; generates invoice
Free web-based invoicing primarily for Finnish companies
Keep track of all your job costs, make sure you don't lose money