WordPress

The world's leading open-source Content Management System (CMS): it powers over 43% of all websites globally, dominating the CMS market with a 60%+ share.

WordPress is the definitive open-source CMS, built on PHP and MySQL, and known for its unparalleled flexibility and massive ecosystem. It powers over 43% of all websites on the internet, including major sites like CNN and NBC, securing its 60%+ dominance in the CMS market. The platform's core strength lies in its extensibility: users access over 60,000 free plugins through the official repository (total plugins exceed 90,000), along with tens of thousands of themes for instant design changes. For e-commerce, the WooCommerce plugin is a powerhouse, running approximately one-third of all online stores. This robust, community-driven architecture allows WordPress to scale from a simple blog to a complex corporate website or a full-scale online shop.

https://wordpress.org/