Multiplexed DBC editor

View and edit multiplexed DBC signals.

Inspect selector signals and the dependent signals they control. Use multiplexer-aware filters and editing to review message branches, then compare your changes before saving the database.

Get DBC Utility — $34 Read the guide

Included in Pro · Windows & Linux · Local processing

DBC Utility editor with message and signal definitions, including multiplexer fields
DBC Utility editor with message and signal definitions, including multiplexer fields

Built for the task

What you can do with this tool.

  • Review multiplexer-related fields with surrounding message and signal context.
  • Filter and edit mux-heavy definitions without relying on manual text-file inspection.
  • Use compare review to catch changes that affect mux selectors or dependent signals.

Your workflow

How to use it.

  1. 01

    Open the multiplexed DBC file.

  2. 02

    Inspect selector and dependent signal definitions.

  3. 03

    Review edits and compare changes before saving the database.

Open the complete guide

Keep going

Helpful next steps.

Multiplexing guide DBC compare guide Release notes

Engineering guides.

All articles
DBC Quality How to validate a DBC file before release

A practical DBC validation checklist for CAN and CAN FD teams covering message IDs, signal layouts, scaling, multiplexing, comments, log replay, and release review.

 DBC Engineering Multiplexed DBC signals explained without the usual confusion

A practical guide to multiplexed DBC messages, mux selector signals, conditional signals, payload reuse, common mistakes, and how to decode mux-heavy CAN data.

 CAN Data Analysis Decode CAN logs with python-can and cantools

A practical Python workflow for decoding CAN and CAN FD logs with python-can, cantools, DBC files, unknown-ID handling, timestamps, CSV export, and signal validation.

 CAN Reverse Engineering How to create a DBC file from reverse-engineered CAN logs

A careful workflow for reverse engineering CAN signals from raw logs, using stimulus notes, bit-change analysis, candidate signals, scale and offset checks, DBC drafting, and validation.

The rest of your workspace.

DBC ViewerDBC EditorDBC Compare ToolDBC TranslatorCAN Log AnalyserCAN DBC ToolCAN FD DBC Tool