Open Source Metering and Usage Based Billing API
Simple and elegant invoicing solution
Empower your hosting business with FOSSBilling
Easy to use, modern and reliable POS solution.
Accounting system for smaller companies written in GnuCobol.
Linux-Based Billing And Business Application Server For FREE use.
Desktop and mobile solution for invoicing
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
Mutasyon is a script can add customer, products, inventory or invoice
Captures time & expense by project and account; generates invoice
Hotel And Lodge Management Software
A tool to convert an exported text file from one format to another.
Free web-based invoicing primarily for Finnish companies