WordPress plugin is software developed specifically for WordPress. WordPress plugins are mainly add-on components used to add new features to WordPress or enhance WordPress functionality.
WordPress plugins are developed in PHP by WordPress developers and WordPress development companies. Some plugins are available for free while others are paid.
There are thousands of WordPress plugins available for free at the official WordPress plugin directory. You can install WordPress plugins on your WordPress website or a blog to add new features or improve functionalities.
Depending on your specific requirements, you can choose the right plugin from free plugin directories or you can buy paid plugins online.