Developer utility · local only
Read the shape of a healthcare message
Paste an HL7 v2 message or FHIR JSON resource for a quick, human-readable structural pass. Built for interface conversations, sample payloads, and test fixtures—not production validation.
This is a non-production utility
This validator is for sample/test data only. Never paste real patient data or PHI.
Paste → inspect
The local message workbench
Results update as you type. Checks are intentionally basic heuristics, not HL7 or FHIR conformance certification.
Input sample
Nothing leaves this browser tab.
0 characters
Paste synthetic or de-identified test content only. No submit button is needed.
The file is read in this browser and is not uploaded or saved.
Automatic format check
Parsed output
Waiting for sample input
Your parsed result will appear here
Everything stays in this browser tab. There is no submit action or network request.
Structural flags
Obvious shape issues are listed by level. Passing here does not establish production safety or standards conformance.
Structural flags will appear here when you enter a message.