Introduction to conversion helpers
The editor supports a vast amount of the most commonly used HTML elements via existing editor features out-of-the-box.
If your aim is to easily enable common HTML features that are not explicitly supported by the dedicated CKEditor 5 features, use the General HTML Support feature.
There are, however, cases where you might want to provide a rich editing experience for a custom HTML markup. The conversion helpers are the way to achieve that. Read the following guides to learn how to use them.