WooCommerce is an e-commerce plugin for WordPress designed for online stores of all sizes. Launched in 2011, WooCommerce is now the most popular WordPress plugin with over 3 million users. It is open-source, easy to install, use, and customize.

WooCommerce gives merchants flexibility in creating and managing their own online stores and offers special features such as inventory management, tax management, shipping integration, and secure payment gateways.

The plugin is available for free for its basic features and offers different price packages for mid-sized and advanced e-commerce websites. A variety of paid and free themes designed for WooCommerce are also readily available. Transaction fees usually range from 1% to 3% depending on each store's volume, country, and payment gateways.

WooCommerce is used in 193 countries, and in 2021, their new internal payment gateway, WooCommerce payment, is now available in 10 countries including Canada, the United States, Germany, France, and Australia.