FHIR servers act as a store of and gateway to FHIR resources. They allow users to manage the FHIR content and execute FHIR operations (system and resource-level operations).
This project of mine is a virtual FHIR server that runs entirely in the browser. This FHIR server simulator allows you to explore and experiment with FHIR without the need to use a remote server or provision one locally. It is therefore an excellent learning resource for those who are new to FHIR or looking to deepen their knowledge of the standard.
You can make API calls to create, read, update, and delete FHIR resources and see the effects in real time. All interactions with the sandbox server occur locally within the browser.
The embedded FHIR resource store does not persist the data between sessions.