A WordPress plugin is a piece of software that “plugs into” your WordPress site. Plugins can add new functionality or extend existing functionality on your site, allowing you to create virtually any kind of website.
WordPress is an open-source content management system (CMS) that makes it easy to create and manage a website. It is the most popular CMS in the world. Millions of business owners, bloggers, and publishers use WordPress every day to maintain their online presence.