Free Desktop book-keeping software for small-businesses & freelancers
Free and Open Source Invoicing, Expenses & Time-Tracking
Accounting system for smaller companies written in GnuCobol.
Free Invoice & Billing Software for Windows, Linux & Mac
Accounting, invoicing, inventory and payroll software for Linux
Enterprise project management replacement for Project Server
Accounting & Best Practice Business Administration System
Ultimate Zero-Budget Revshare Solution for Indie Teams
Free & Open Source Invoice App for Freelancers & Small Businesses
Centralized signing and verification
A super simple way to create & send invoices, receive payments online
Accounting for Linux
Generate professional invoices and business letters directly online
Building High Quality ERP and Accounting Software for SMB & SME
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
jBilling is a web-based enterprise billing system.
A Wallet Management Application
Captures time & expense by project and account; generates invoice
It's a class library that implements functions for working with curren