FHIR Resource Viewer & Validator
Paste a FHIR R4 JSON resource to validate required fields and types, then browse a flattened field-path view. PHI never leaves your browser — all validation is client-side.
Supported resources: Patient, Observation, Bundle, Encounter, MedicationRequest, Condition, Procedure, DiagnosticReport, AllergyIntolerance, Immunization, Organization, Practitioner. Other resource types are parsed and displayed without schema checks.
This validates structure and common required fields — not full FHIR profile conformance. For HL7 v2 messages, use the HL7 Message Parser.