Currency converter
An other free stock market software in C++/Python
Open-source complex-event based trading engine
Gerenciador de finanças pessoais / Personal finance manager
Restaurant Script is a Pizza Restaurant Ordering System for Everyone!
Technical indicators in Python
Journal and Ledger generator for multiple companies
Free Java components for Quantitative Finance and Algorithmic Trading
All in one Merchant platform to sell your products and services online
Intuitive quote, delivery note, invoice, payments management app
A simple cash register app for makeshift POS
Free Solutions for you
simple pos and warehouse software
Cyclos 3.7 port with improved UI and additional reporting app
Hotel And Lodge Management Software
Google Checkout Merchant
A quantitative finance .NET library wrapping QuantLib.
Free Web Host Billing System
iceB - free and opensource accounting software for Linux and Windows
Free web-based invoicing primarily for Finnish companies