When working on a web page with Divi Builder, you are provided modules to add the content to your web page. By default, Divi Builder comes with about 38 modules. Way fewer than, for instance, Elementor which offers more than 90 modules (called widgets).
If you need to add the type of content in which the module is not available in Divi Builder, you can install a Divi Plugin. Commonly, a Divi Builder adds additional modules to your Divi Builder, allowing you to enrich the features of your web page. For instance, the Before After Slider plugin allows you to add image comparison feature (before-after) to the page you are working on, which is great if you are creating a landing page of services like professional photo editing, makeup artist, and so on.
Elegant Themes — the developer of Divi Builder — allows third-party developers to develop plugins to enrich the functionality of the Divi Builder. You can download Divi plugins on marketplaces like Divi Cake and Elegant Marketplace.
How to install a Divi Builder plugin
Technically, a Divi plugin is a WordPress plugin. To install it, you can go to Plugins -> Add new.
Click the Upload Plugin button, followed by the Choose File button to select the ZIP file of the Divi plugin you want to install. Click the Install Now button once the ZIP file is selected.
Activate the plugin once installed. Once done, try to edit a page or post with Divi Builder. Add a new module and see if there are new modules available. If yes, then you have successfully installed your Divi plugin.
If some cases, you might be required to enter the license key of the plugin you downloaded. If this is the case, simply enter the license key. If a plugin requires you to enter a license key, you will typically see a new sub-menu item on the Divi menu on your WordPress dashboard.