In 2010 uniCenta set out to build a powerful, flexible, commercial-grade open source Point Of Sale to help as many SME business owners as we could
It broke the mold
uniCenta oPOS went viral

OVER 1million
DOWNLOADS since 2010


Capterra ranks uniCenta oPOS #4
Most Popular POS 2017 & 2018

discover more how to & helpful videos on our youtube channel

uniCenta oPOS and posApps integration
uniCenta oPOS helps retailers of all shapes and sizes extend their store front to a wider audience like never before using our posApps Plugin Manager

watch how uniCenta oPOS handles Card Payments using our posApps Manager

see how to connect uniCenta oPOS to an online WooCommerce store using our posApps Manager


  • Windows XP to Windows 10


  • Ubuntu, Debian, Mint + other


  • Mac OS X 10.6 and later


uniCenta oPOS open source Point Of Sale kiosk
  • Bike shops
  • Deli’s
  • Grocery
  • Pop-up Shops
  • Store-in-Store
  • Supermarkets
  • and more….


uniCenta oPOS Point Of Sale for bar cafe restaurants
  • Bars
  • Cafés
  • Hotels
  • Motels
  • Nightclubs
  • Restaurants
  • and more….


uniCenta oPOS Point Of Sale for Venues
  • Events
  • Museums
  • Parties
  • Pop-ups
  • Venues
  • Visitor attractions
  • and more….


Your time is valuable and you want the assurance someone is there to help when you need it.

You want the latest uniCenta oPOS fixes & updates, access to our exclusive online forum and get invaluable online and downloadable hard-copy User and Developer Guides all for less than the price of a cup of coffee per week.

Sign up for our exclusive Subscriber-only support service and you get these business apps included.

Support us and you support the project!

uniCenta oPOS Point Of Sale for retail stores

uniCenta oPOS

uniCenta oPOS open source Point Of Sale Remote Order Display

Remote Order Display

WEB Server

WEB Reports

Digital Receipts



You don’t want to contribute to the project or need us and you’re quite happy to go it alone. That’s fine by us! Go for it!

We’re committed to giving back to the  community where we were born anyway and pass back two version releases behind the latest available to our subscribers – including all source code – behind the latest available exclusive to uniCenta Customers.

Want to trial, evaluate, review or just use uniCenta oPOS without us?
Get uniCenta oPOS – Jan 2018 UPDATE! Now version 4.3 – it’s free, in all senses of the word, and can be downloaded from our community site on Sourceforge

uniCenta oPOS open source Point Of Sale software is free and open source using the GNU GPL3 license. 

Read what free and open source means here