Convert DBC to JSON online

A JSON representation of a CAN database plugs straight into simulation harnesses, logging pipelines and test automation. Drop your .dbc file and export a clean, hierarchical JSON — messages, signals, scaling, units and value descriptions — without uploading the file anywhere.

Open DBC → JSON converter Features & roadmap

Hierarchical: messages contain their signals — no joins needed
Numbers stay numbers: factor/offset are exported as numeric types
Value descriptions become a name → label map
Ideal input for CAPL, Python and Rust CAN tooling

How it works

1Open the DBC viewer and drop your .dbc file.
2Click Export and choose JSON. The current preview exports the first 20 rows.
3Full export and batch conversion will be available when Pro launches.

Frequently asked questions

Why JSON instead of CSV?

CSV is flat and loses nesting; JSON keeps the message → signal hierarchy and typed numbers, which is what scripts and simulators want.

Is the JSON schema documented?

The export is self-describing: message objects carry id, extended, dlc, cycleTime and a signals array with every DBC property.

Can I convert JSON back to DBC?

Round-tripping is on the roadmap; today CANpeek converts DBC → JSON/CSV/XLSX and reads A2L databases.

Your file never leaves your browser

CANpeek parses DBC and A2L files entirely client-side — there is no upload step, no account, and nothing stored. There is currently no paid product; full export is planned for Pro.

Open DBC → JSON converter