Our Top Picks

Chromis Logo
Chromis POS
  • Deployment: Windows
  • Customer service: Online
  • Integrations

Chromis POS started from humble beginnings as an offshoot of the uniCenta POS and has morphed into another software entirely. One awesome upcoming feature is the ability to issue gift cards as well as a full-fledged customer loyalty system. Chromis POS is incredibly flexible, working on Windows-based systems from XP to 10. It also works on Linux, but there currently doesn't seem to be a plan to support Mac development. Another great feature is a kitchen screen, allowing front-of-house restaurant sales to show orders in the kitchen for timely food prep and cooking. Most common USB printers, including thermal receipt printers from companies such as Epson, should be basically compatible. Chromis POS also contains a powerful scripting language baked directly in the software that allows for further feature additions and custom user development to cater to almost any situation imaginable.

Pros & Cons

Pros

  • Works on most available versions of Windows and Linux
  • Kitchen Screen software also free
  • Robust reporting

Cons

  • No Mac support

What Customers Are Saying

Users say Chromis POS is the "most advanced" open-source point of sale system they've used. They seem to really like that the system is completely free to use for Windows. Many users also enjoy the available support on the forums for users who need troubleshooting help. However, some users did say that the connection to the card payment system was not available in every country.

Summary

Chromis Logo
Chromis POS
  • Starting Price
    • Free Software
  • Free Trial/Demo
    Free Software
  • Deployment
    Installed - Windows
  • Support Options
    Online
  • Sales Tracking
    No
Features
  • Deployment: Windows
  • Customer service: Online
  • Integrations
Floreant-POS Logo
Floreant POS
  • Deployment: Mac, Windows
  • Customer service: 24/7 (live rep), phone during business hours, online
  • Integrations

Floreant POS is an open-source restaurant POS system that's won many awards for its extensive capabilities. Used by thousands of restaurants including Rebel Barn and Denny's, this POS software works on any platform including Windows, Mac, and Linux. Prominent features include bar tab management, table service, and even mobile support on certain tablets. Floreant POS is free, but a paid upgrade to a PRO account will net users many extra features, although the base version should suffice for most start-ups and small businesses. Most printers should also be compatible with Floreant POS, allowing preexisting hardware configurations to be sufficient when switching POS systems. One of the best features of the software is the ability to add or remove functionality whenever needed. For example, there's a "pizza builder" module for pizza restaurants, but it can be removed if not needed.

Pros & Cons

Pros

  • Modular POS system with many different plug-ins available
  • Unique features like table service and bar tabs

Cons

  • Only focused on the restaurant industry

What Customers Are Saying

Customers love how fast it is for restaurants of all sizes to get started with this software. They also say that of all the open-source POS systems available, Floreant seems to do the best for the food industry. Other users say that plug-in development or software customization may cost them, but it's still a tremendous value considering the software itself is free to use.

Summary

Floreant-POS Logo
Floreant POS
  • Starting Price
    • Free Software
  • Free Trial/Demo
    Free Software
  • Deployment
    Installed - Mac
    Installed - Windows
  • Support Options
    24/7 (Live Rep)
    Business Hours
    Online
  • Sales Tracking
    No
Features
  • Deployment: Mac, Windows
  • Customer service: 24/7 (live rep), phone during business hours, online
  • Integrations
Loyverse-POS Logo
Loyverse POS
  • Deployment: Web-based, cloud, SaaS, iPhone/iPad, Android
  • Customer service: 24/7 (live rep), online
  • Barcode scanning

Loyverse POS is a general-purpose, open-source POS system designed specifically for mobile usage. The software should work flawlessly on both Android and iOS phones and tablets. Whether a business is in food services or retail, Loyverse POS offers a comprehensive and robust system that's cloud-based with tons of great features. The system can handle a multitude of tasks, from cash management and barcode generation to employee management and multi-location capabilities. The POS system also contains many customer retention features such as loyalty cards, customer purchase history, and a points reward program. Loyverse POS also integrates directly with many credit card gateways in over 130 different countries, as well as major e-commerce platforms and accounting applications. Utilizing Zoho Flow, the software can also integrate with over 500 applications while simultaneously negating the need to know any coding whatsoever.

Pros & Cons

Pros

  • Integrates with many third-party applications
  • Customer loyalty functions

Cons

  • Some features are locked behind paid tiers

What Customers Are Saying

Users seem to really like the overall value of Loyverse POS, as it allowed them to put more money toward actual business functions instead of expensive POS software. They also really like being able to use it on smartphones and tablets. Users are also praising the in-depth reporting functionality. Some users did state that they wish they had a bit more control over various inventory functions.

Summary

Loyverse-POS Logo
Loyverse POS
  • Starting Price
    • Free Software
    • Employee management: $5/month/employee
    • Advanced inventory: $25/month/store
  • Free Trial/Demo
    Free Software
    14-Day Free Trial (Add-On Services)
  • Deployment
    Web-Based, Cloud, SaaS
    iPhone / iPad
    Android
  • Support Options
    24/7 (Live Rep)
    Online
  • Sales Tracking
    Yes
Features
  • Deployment: Web-based, cloud, SaaS, iPhone/iPad, Android
  • Customer service: 24/7 (live rep), online
  • Barcode scanning
UniCenta Logo
uniCenta
  • Deployment: Mac, Windows, web-based, cloud, SaaS, iPhone/iPad, Android
  • Customer service: 24/7 (live rep), online
  • Payment processing

uniCenta oPOS is a commercial-grade POS system that's completely open source. While the company does offer a paid plan for support only, users attempting to go it alone will have a plethora of support and community features at their disposal. uniCenta is able to be tailored to a large variety of different types of businesses, including restaurants, tanning salons, and hotels. It's also got some really powerful features under the hood, such as remote display for sending visual information — like orders into a kitchen — included for free. To help with multi-unit managers and owners, reporting is available 24/7, with WordPress integration allowing users to access centralized reporting on any device. uniCenta also allows users to send their customers a fully digitized receipt the moment a sales transaction is completed.

Pros & Cons

Pros

  • Both free and paid support
  • Many features included free that usually cost extra

Cons

  • Self-setup is tedious, pushing non-tech users to paid support plans

What Customers Are Saying

Users love uniCenta's built-in CRM functionality and the flexibility to handle different tax schemes. They're also huge fans of the software being ready to use for many different business types. They also like that items can be sorted by scannable barcodes or tallied by total item weight. One user said it can sometimes be difficult to find free support, although paid support is available.

Summary

UniCenta Logo
uniCenta
  • Starting Price
    • uniCenta oPOS version 4: Free
    • BASE level Subscription: £60/year
    • PLUS level subscription: £136.00/year
  • Free Trial/Demo
    Free Version Available
    Free Trial
  • Deployment
    Installed - Mac
    Installed - Windows
    Web-Based, Cloud, SaaS
    iPhone / iPad
    Android
  • Support Options
    24/7 (Live Rep)
    Online
  • Sales Tracking
    Yes
Features
  • Deployment: Mac, Windows, web-based, cloud, SaaS, iPhone/iPad, Android
  • Customer service: 24/7 (live rep), online
  • Payment processing
Wallace-POS Logo
Wallace POS
  • Deployment: Web-based, cloud, SaaS, Mac, Windows
  • Customer service: Online
  • Integrations

Wallace POS advertises itself as "Your cash register in the cloud." Eliminating the need for clunky and complicated installation procedures, users can access Wallace POS from any internet-connected device via a special user-specific web address. It's also compatible with touchscreen devices, allowing for rapid data entry during peak business hours. Users can scan barcodes with any standard USB barcode scanner or via a special Android application for even faster checkout times. Wallace POS also contains powerful reporting and inventory functionality, ensuring users can maintain a healthy business at all times.

Pros & Cons

Pros

  • Completely cloud-based
  • Beautiful and professional receipt printing

Cons

  • Setup time could be longer for new businesses

What Customers Are Saying

Reviews for Wallace POS are pretty hard to come by. However, a Reddit thread showed users excited to help out with the open-source development and stating that the developer had done "really good work." As more reviews come online, we'll continue to update this section.

Summary

Wallace-POS Logo
Wallace POS
  • Starting Price
    • Free Software
  • Free Trial/Demo
    Free Software
    Free Demo
  • Deployment
    Web-Based, Cloud, SaaS
    Installed - Mac
    Installed - Windows
  • Support Options
    Online
  • Sales Tracking
    No
Features
  • Deployment: Web-based, cloud, SaaS, Mac, Windows
  • Customer service: Online
  • Integrations

How We Chose the Best Open-Source POS System Software

Great point-of-sale software doesn't have to be expensive — in fact, many open-source offerings are just as robust and feature-rich as their often more expensive paid counterparts. Additionally, selecting new business software for any business doesn't have to be complicated. When researching the best open-source POS software, we always try to unbury the often complicated nature of new software by focusing on three key areas.

POS Features

Many features are mandatory with quality POS software. Barcode scanning is one of the most beneficial features of any retail shop, aiding in sales and inventory management. Payment processing is also incredibly important, although some POS software doesn't include internal card processing and instead requires users to obtain their own card machine and merchant account.

Integrations

Integrations are now a cornerstone of any software but are sometimes needed for POS software as well. One common integration that could greatly benefit users is the ability to export sales data to external accounting or bookkeeping software.

Reports

Many believe reports are the lifeblood of any business. They allow users to reconcile their cash drawer at the end of the workday, print inventory lists, and even check on the business's busiest sales hours.