Simplifier is the global platform for FHIR profiles and Implementation Guides, the place where interoperability starts.

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FHIR profiles and Implementation Guides contain the definitions for interoperable APIs based on FHIR. Simplifier is the platform for profile authors - the owners of the APIs - and developers who want to use these profiles to write apps and interact with the APIs. Simplifier is used by governments, SDOs, authors, vendors and consultancies around the world. Simplifier also powers the official HL7 FHIR package registry. It is the GitHub for FHIR.