OCPP 1.6J

Message Validator

Paste any OCPP 1.6J frame and validate it against the official JSON Schemas — instantly, no uploads.

OCPP Frame (JSON)

Paste a CALL, CALLRESULT, or CALLERROR frame.

Quick examples

What gets checked

  • ✓ JSON syntax
  • ✓ Frame structure (CALL / CALLRESULT / CALLERROR)
  • ✓ Action name verification
  • ✓ Payload schema validation
  • ✓ Required fields
  • ✓ Data types & enum values
  • ✓ String length constraints

Quick links

Frame format
[2,  "unique-id",  "Action",  {...}]
MessageTypeId: 2 CALL · 3 CALLRESULT · 4 CALLERROR