About the Utilities

These are connected vehicle message encoding/decoding utilities that run in WebAssembly in the browser.

PCAP Decoder

Decodes PCAP files collected with Wireshark and attempts to extract message frames.

Ported from Java from the open source USDOT CVManager

Made with:

• Kaitai Struct
• TeaVM

J2735 ASN.1 Converter

Converts messages between UPER (Unaligned Packed Encoding Rules), XER (XML Encoding Rules), and JER (JSON Encoding Rules)

Made with:

• SAE J2735/2024 ASN.1 Specification
• asn1c
• emscripten

Web Site

Made with:

• Svelte / SvelteKit
• Azure Static Web Apps