Point-of sale (POS) is the location where a transaction takes place. It also refers to the immediate capture of transactions and customer payment information when goods and services are purchased. This data can be obtained using many different devices such as a computer, cash register, barcode scanner, PIN pads, and magnetic card readers.
There are many different reasons why a POS system is indispensable for retail businesses. It helps the retail establishment manage and automate inventory functions, record sales transactions, handle and track special offers (such as discounts, coupons, and special promotions), and improve the efficiency of staff by allowing them to spend more time interacting with customers. The system also provides accurate and relevant reports, tracks volume and performance, uses customer data to help the organisation generate more business, allows a proprietor of the retail establishment to maintain control in absentia, and much more.
A POS system consists of a number of different components, including computer hardware, a computer operating system, checkout hardware, and checkout software. A key part is the POS software. The purpose of this article is to identify Linux software that forms part of the checkout system. With the current economic climate, open source POS software has the obvious advantage of helping a business to lower costs.
Linux has a good range of open source Point-of-Sale software which can help retailers make considerable cost savings, not simply due to the lack of licensing and upgrade fees.
To provide an insight into the open source software that is available, we have compiled a compilation of 8 of our favorite Point-of-Sale software. Hopefully, there will be something of interest here for anyone who needs to track sales and inventory as they occur. Here’s our recommendations.

Click the links in the table below to learn more about each program.
| Point-of-Sale Software | |
|---|---|
| Odoo | ERP and CRM software |
| OSPOS | POS software for retailers |
| uniCenta | Commercial-grade POS |
| Barcode4J | Flexible barcode generation package |
| Chromis POS | Feature rich commercial-grade POS |
| Floreant POS | Point-of-Sale targeted at restaurants |
| POSper | Designed for small businesses |
| WallacePOS | Intuitive and modern web based POS & business management system |
This article has been revamped in line with our recent announcement.
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Know a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |

