What's the difference between a Decoupled CMS and a Headless CMS?

These terms are commonly used interchangeably, but do have a notable difference(s). While both have a Content Management System, Database, and API, the primary difference is that a headless CMS doesn't have a visual front-end environment and operates API-first. Specifically, separating formatting from content allows yiou to publish content regardless of device or website.

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