Features and perks

Main features

Square extension for OpenCart supports the following major features:

  • Tokenization of credit cards (only for registered customers). Speeds up all subsequent checkouts done by your customers, leading to better customer experience. Customers with tokenized credit cards can make fast checkouts without getting redirected and entering card details.
  • 1-stage (Payment) and 2-stage (Authorization + Capture) transaction processing directly from the OpenCart admin panel.
  • Voiding and Refunding transactions directly from the OpenCart admin panel.
  • Test mode for cases when you want to see if the extension is set up properly.
  • Detailed debug logging - indispensibe for developers and support experts who want to take a closer look.
  • Detailed display of transaction data including: Transaction ID, Order ID, Status, Transaction Result, Transaction Type, Amount, Customer User Agent, Customer IP and more.
  • Automatic recurring payments and credential updates via the cron job script.


Here are some of the extra benefits you get:

  • 100% free. The extension is shipped free of charge.
  • 100% mobile friendly. The admin panel looks great on desktop and mobile views.
  • Security-oriented. The extension works only on stores with SSL. No sensitive data is stored on your site - payments, fraud checks, storing of credit card information are managed in a secure and standardized fashion directly by Square.
  • Seamless integration into OpenCart. The extension hooks to your OpenCart store without overriding any core files, leaving a very small footprint.
  • Tidy and standardized code. The extension is developed with the best coding practices in mind.
  • Constant updates. The iSenseLabs developers always do their best to give you the most up-to-date release of the extension with all known bugs fixed.
  • Clean and crisp documentation.
  • Quick support. Have a question? Our friendly support team will do their best to provide a solution in a timely manner.
  • This extension has been officially endorsed by Square.