A free HL7 v2 message editor, viewer and validator that runs in the browser. Open an ADT, ORU or ORM message and it is parsed segment by segment, with every field named and checked against the standard, from HL7 v2.1 through v2.9.1.
Messages are read and validated on this device. Nothing you open is sent anywhere, and the content security policy on this page is what enforces that rather than merely stating it.
If this is all there is to see, a file failed to download or this browser is older than the editor supports. Reloading is worth trying first; a current version of Chrome, Firefox, Safari or Edge will run it.