OFBiz - Apache Open For Business Project

•    Java

Apache OFBiz is an open source enterprise automation software project. It means ERP (Enterprise Resource Planning), CRM (Customer RelationShip Management), E-Business / E-Commerce, SCM (Supply Chain Management), MRP (Manufacturing Resources Planning), CMMS/EAM (Maintenance Management System/Enterprise Asset Management), POS (Point Of Sale), and so on.

OpenERP - Open Source Business Applications

•    Python

OpenERP is a comprehensive suite of business applications including Sales, CRM, Project management, Warehouse management, Manufacturing, Financial management, Human Resources, Point of Sale, Accounting, Purchase, Marketing and lot more. It has over 700 OpenERP modules available on Launchpad. The package contains OpenERP server, web client and GTK client.

Okeros POS

•    DotNet

Okeros POS is point of sale system targetted at Small and Medium Businesses. It is primarily for doing sales, stock control, and expense management. It is developed in .NET Framework with C# 3.0 and SQL 2005 as database.

Wolfhaven Solutions Point of Sales

•    C++

Wolfhaven Solution Point of Sale Fully functional Point Of Sale (POS) prgram for your Linux system it uses a Postgres database as backend and can work with POS printers and barcode scanners

ConnectBusiness POS - Point of Sale Sytem

•    DotNet

ConnectBusiness is a simple, Apple-inspired point of sale system. This cloud-based POS application allows you to run your entire business on any Internet enabled device through your browser, including a Windows PC, a Mac desktop or laptop, an iPad or tablet PC.

WooCommerce-POS - :convenience_store: A simple front-end for taking WooCommerce orders at the Point of Sale

•    PHP

Development repository for WooCommerce POS - the Point of Sale plugin for WooCommerce. If you would like to help translate WooCommerce POS into your language please check out the WooCommerce POS Language Packs repository.

PB POS System

A small Point of Sales System for Microsoft Windows based computers

ERPNext - Open Source Alternative to SAP

•    Python

ERPNext is an Open Source ERP for small, medium sized businesses. It is built on wnframework. It contains various modules including Accounting, Inventory, CRM, Sales management, Purchase, Human resource management, Asset management, Point of sale, Project management, Leave management, Billing, Payroll and lot more.

FreeMercator, Java POS Point of Sale

•    Java

Free and open Java POS Point of Sale terminal and back-office. Project goals include scalabiliy, robustness, and ease of use.

JC Change Calculator Control

JC Change Calculator is a .NET control that makes it easy for developers to add POS style change calculation to any point of sale type application. It's developed in C#.

Mercator, Java Point of Sale

•    Java

Mercator is a Point of Sale (POS) application written in Java. It is a OO, multi-purpose transaction engine that supports general retail and quick-order restaurant environments using standard POS peripherals (JavaPOS) and/or menu interface.

uniCenta oPos - Award wining Point of Sale Software

•    Java

uniCenta oPos is an award wining Point of Sale Software. It provides support Barcode Scanning, Card Processing, Multi-Payment, Multi lingual, Multi-Terminal, Managing inventory and lot more.

Retailer.org

•    PHP

Retailer.Org is a POS(Point Of Sale) program aimed specially to minimarket alike retailers, allowing them to have a real time control of their inventory, sales and other basic data. an alpha release is already available. very easy to use for the retailer

CK-ERP

•    PHP

An accounting / educational / MRP / ERP / CRM system for SMEs

red1

Free Open Source ERP POS CRM Ajax Java enterprise

Open ERP - Software Solution for all

•    VBScript

Open-ERP combines the power of HRMS, CRM, Inventory ,point of sales (POS), retailing, distribution, inventory, e-commerce, accounting, and workflow systems. Also some Industry Specific Modules for Milk producing, Courier amp; HR Firms

opentaps = ERP + CRM

•    Java

opentaps Open Source ERP + CRM, is a fully integrated application suite that supports eCommerce, Customer Relationship Management, Warehouse and Inventory Management, Supply Chain Management, and Financial Management to Business Intelligence and mobility integration out-of-the-box.

ADempiere - ERP Business Suite

•    Java

ADempiere is an open source ERP business suite. It has full support for Maintenance Management, Project Management, Manufacturing, Customer Relationship Management (CRM), POS, ecommerce, Human Resource, Accounting, Sales and Purchasing. It is well integrated with OLAP Business Intelligence, Financial Reporting and JasperReports.

FreePos

•    PHP

FreePos is a multiuser Point of Sale ( Point-of-Sale or POS ) app written in Visual Basic and PHP for web-based Linux use. Currently available modules are inventory, backoffice, cash reconciliation, Purchases. English and Spanish TPV ( Punto de Venta )

Odoo - Open Source Apps To Grow Your Business

•    Python

Odoo (formerly OpenERP) is a suite of web based open source business apps. The main Odoo Apps include an Open Source CRM, Website Builder, eCommerce, Project Management, Billing & Accounting, Point of Sale, Human Resources, Marketing, Manufacturing, Purchase Management