A headless CMS is a modern approach that separates the backend (where content is created and stored) from the frontend (the presentation layer). Unlike traditional CMS platforms, a headless CMS allows you to manage content independently of how it will be displayed, using APIs to deliver content across various platforms and devices such as websites, mobile apps, and IoT devices.

For instance, an online retailer can use a headless CMS to centrally manage product information and seamlessly update their website, mobile app, and in-store digital displays, ensuring a consistent and up-to-date user experience everywhere.