OpenCart CMS is a free, open source online management system built using PHP, HTML components and a MySQL database. Its creator was Christopher G. Mann who started working on the project back in 1998. It was initially developed in Perl and its first release was in May 1999. However, in 2000 all progress stopped and five years later the domain name expired. Daniel Kerr saw it as the perfect opportunity to use it as a cornerstone for his own e-commerce software, written in PHP. He released the first stable version in February 2009.
OpenCart CMS quickly started gaining popularity and in April 2015 it was recorded as responsible for 6.42% of the global e-commerce volumes. What this actually means is that it managed to surpass other popular ecommerce softwares such as ZenCart and Shopify. In 2017 Daniel Kerr announced that there are over 317.000 website who are using opencart as a shop CMS, managing to also surpass Magento.