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Introduction

This page lists known open source implementations of the FHIR specification. For a list of running servers, see Publicly Available FHIR Servers for testing

Reference Libraries

JAVA: https://github.com/jamesagnew/hapi-fhir - James Agnew / University Health Network
- Open-source Java library for quickly creating FHIR Servers and Clients
- Geared towards adding FHIR capability to existing applications (e.g. it's not a database, it's a library for quickly bolting FHIR on to your own database, or connecting to other FHIR servers as a client)
- Supports all resource types, most operations, and both xml and json encodings
- "Tinder" code generator (Maven plugin) creates model objects and clients from Profiles and Conformance statements

DotNet: https://github.com/furore-fhir/spark
- Reference server built in parallel with Grahame's to test the specification
- Supports all resource types, searches, all operations, xml + json
- Built in .NET with the .NET reference implementation, WebApi 2.0 library, Mongo DB for storage and search.

Grails: https://fhir-open-api.smarthealthit.org - Josh Mandel / SMART Platforms
- Open-source server in Grails (Java/Groovy) + Postgresql
- "SMART on FHIR" Server: https://fhir-open-api.smarthealthit.org | Source
- "FHIR Starter" App Launcher https://apps.fhir.me | Source

Delphi: http://github.com/grahamegrieve/fhirserver
- De facto reference server (runs at http://fhir.healthintersections.com.au)
- general purpose server that implements all of the specification
- development platform: (delphi / windows / mssql)

FHIRBase - open source relational storage for FHIR with document API based on PostgreSQL. FHIRBase is an attempt to take the best parts of Relational & Document Databases for persistence of FHIR resources. FHIRBase stores resources relationally and gives you the power of SQL for querying & aggregating. At the same time FHIRBase provides a set of SQL procedures & views to persist and retrieve resources as a json documents in one hop.

the FHIR build tool itself is open source and includes various definitional and reasoning tools. See [1]. If you aren't signed up to the HL7 GForge, you can access the FHIR repository at [2] anonymously.

JSON-to-XML-Converter - JavaScript based open source library to convert FHIR between JSON and XML. It is built from the FHIR XML Schema.