What is Plugin?

Plugin or add-in, an add-on is a software component that adds a specific feature to an existing computer program. When a program supports plug-ins, it enables customization. Thus, It 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 apps that allow you to add new features and functionality to your WordPress website. The same way as apps does for your smartphone. WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress. In the WordPress community, there is a saying that goes around: “there’s a plugin for that”. They make it easier for users to add features to their website without knowing a single line of code.


There are 48,000 WordPress plugins available for free at the official WordPress plugin directory. At WPBeginner, we write about all the best WordPress plugins. We have even shared a list of all the plugins we use. Aside from free plugins, there are tons of amazing commercial ones available from third-party companies and developers.

As a site administrator, you can install and uninstall plugins from the admin area. You can also download and manually install them using an FTP client. Because the vast majority of plugins are free, it is important to note that they usually do not come with tech support. For this reason, it is important to be careful when choosing which ones you want to install on your site.

Advantages of Plugin

  • Enable third-party developers to create abilities that extend an application
  • Support easily adding new features
  • To reduce the size of an application
  • To separate source code from an application because of incompatible software licenses.
  • Make bulk modifications, like Delete more unwanted comments in one click.

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