Sanity is a headless content management system (CMS) and a set of developer tools for building digital platforms, websites, and applications. Sanity allows developers to easily create, manage, and deliver content through a flexible and extensible data model while providing a powerful set of APIs and developer tools for integrating the content into various front-end frameworks and technologies.
Sanity is based on a ""schema-first"" approach, which means that the structure of the content is defined in a schema, and the schema is then used to validate and structure the content as it is created and edited. This allows for a high degree of flexibility and control over the content and enables the use of features such as versioning, history, and rollback.
Sanity also provides a web-based studio for editing and managing content, which can be customized and extended to suit the needs of the particular project. This allows for easy collaboration between designers, developers, and content creators. It is popular among developers and marketers for building dynamic and scalable websites, apps, and other digital platforms.