In computing, a plugin (short for plugin module or plugin software) is a software component that adds specific functionality to an existing software application. Plugins are designed to work in conjunction with a host application, which provides a framework for the plugin to run within. The plugin can be thought of as an add-on or extension to the host application, which enhances its capabilities and adds new features. Plugins are commonly used in web browsers, media players and image editing software, where they can add support for new file formats, codecs, or effects. Plugins are often created by third-party developers and can be downloaded and installed separately from the host application. This allows users to customise their software experience and tailor the functionality to their specific needs.

Plugins can, for example, be used for contact forms, lottie microanimations, text translations and any other functionality that is not available in a CMS or that you want to customise more than the website’s standard functionalities allow.