How to Define Your Own Uniform Type Identifier (UTI)

Uniform Type Identifiers (UTIs) are a standardized way for macOS and iOS applications to identify data types. UTIs are used to identify a wide range of data types, from images and audio files to text documents. UTIs are hierarchical, allowing applications to recognize and work with related data types. Developers can define their own UTIs in their applications to provide better integration with other applications in the ecosystem.