FQL is a query language that allows you to retrieve, filter and project data from any data source containing FHIR Resources. It brings the power of three existing languages: SQL, JSON and FhirPath.
On Simplifier we have the FQL playground<https://simplifier.net/fql> available where you can try running your own queries in a scope of your choice.
As a scope you can select any publicly available package or project. You can run one of our example queries to get a quick understanding of all the possibilities with FQL.
You can also share the query you made with other Simplifier users or embed your query output in another website.