What is the function of a plugin in software applications?

A plugin serves the purpose of extending or enhancing the capabilities of a software application by adding specific features or functionalities. This modular approach allows users to customize their software experience according to their needs without altering the core system. For example, in a web browser, plugins can enable additional features like ad-blocking, video playback enhancements, or new content formats, which the base application does not support inherently.

The primary focus of a plugin is to integrate new functionalities that complement the existing framework rather than providing the foundation for the application itself, managing hardware resources, or conducting security audits. This modularity facilitates greater flexibility and scalability within software applications, allowing users to choose which features they want to utilize based on their individual preferences.