WooCommerce

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 free base product.
WooCommerce is used by a number of high-traffic websites such as Small Press Expo.For the 3rd week of September 2015, Trends indicated that WooCommerce ran on 30% of e-commerce sites and millions of active installs. Ecommerce is rapidly growing worldwide and WooCommerce has over 39 million downloads as a plugin and is currently active on more than three million websites and is the most popular eCommerce platform in 2018. WooCommerce serves approximately 4% of the top million HTML pages. In 2015, statistics show that the percentage of online stores that utilize WooCommerce through Wordpress.org's plugin is more than 30% of all stores. The current 2019 market share for WooCommerce is 22% of the top 1 million sites using eCommerce technologies
WooCommerce has attracted significant popularity because the base product, in addition to many extensions and plugins, is free and open-source. WooCommerce has hundreds of extensions and over 1,000 plugins.