
Apache OFBiz is an open source enterprise resource planning (ERP) system. It provides a suite of enterprise applications that integrate and automate many of the business processes of an enterprise.

Magento is an open-source e-commerce platform written in PHP. It uses multiple other PHP frameworks such as Laminas and Symfony. Magento source code is distributed under Open Software License (OSL) v3.0. Magento was acquired by Adobe Inc in May 2018 for $1.68 billion.

OpenCart is an online store management system. It is PHP-based, using a MySQL database and HTML components. Support is provided for different languages and currencies. It is freely available under the GNU General Public License. As of May 2016, 342,000 websites were using OpenCart.

PrestaShop is a freemium, open source e-commerce platform. The software is published under the Open Software License (OSL). It is written in the PHP programming language with support for the MySQL database management system. It has a software dependency on the Symfony PHP framework.

Spree Commerce is an open-source headless e-commerce platform for global brands.

VirtueMart is an open-source e-commerce solution designed as an extension of the Mambo or Joomla! content management systems (CMS). VirtueMart is written in PHP and requires the MySQL database environment for storage. It is best suited for low to medium level traffic web-sites.

WooCommerce is an open-source e-commerce plugin for WordPress. It is designed for small to large-sized online merchants using WordPress. Launched on September 27, 2011, the plugin quickly became popular for its simplicity to install and customize and for the market position of the base product as freeware.

Zen Cart is an online store management system. It is PHP-based, using a MySQL database and HTML components. Support is provided for numerous languages and currencies, and it is freely available under the GNU General Public License.