A Wordpress plugin is a piece of software containing a group of functions that can be added to a WordPress website. They can extend functionality or add new features to your WordPress websites.
WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress. They make it easier for users to add features to their website without knowing a single line of code.
There are thousands of WordPress plugins available for free at the official WordPress plugin directory. Aside from free plugins, there are amazing premium ones available from third-party companies and developers. In general. the latter offer more features than free plugins