V2JSON — V2X message decoder

Paste a hexadecimal V2X UPER stream and receive structured JSON. Supports CAM (Cooperative Awareness), DENM (Decentralized Environmental Notification), CPM (Collective Perception), MAPEM, SPATEM, SREM, SSEM and IVIM messages as defined by ETSI EN 302 637-2, EN 302 637-3, TS 103 900, TS 103 831, TS 103 324 and TS 103 301.

The interactive decoder loads with JavaScript. The same functionality is available via the public REST API at /api/v1/decode — documentation at /docs.