CAN DBC Viewer

LFC LAB

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About this app

CAN DBC Viewer is a read-only Android DBC file viewer for opening CAN DBC files and checking CAN messages, signals, nodes, and bit layouts while developing or debugging vehicle communication. It helps engineers inspect a DBC database on a phone without editing the file or connecting to a CAN bus.

The app parses common DBC content such as BO_, SG_, BU_, CM_, VAL_, and SG_MUL_VAL_ entries, then presents messages, signals, value descriptions, comments, CAN IDs, DLC, transmit nodes, and receive nodes in a searchable viewer. Standard and extended frame IDs are shown clearly, with signal details such as Intel/Motorola byte order, signed or unsigned type, factor, offset, minimum, maximum, unit, and receivers.

Key features
- Open local .dbc files with the Android file picker
- View a DBC summary with message, signal, node, value, and issue counts
- Search CAN messages by name, CAN ID, TX node, comment, or signal text
- Search signals by signal name, unit, RX node, and comments
- Review VAL_ value descriptions and labels
- Inspect message details including CAN ID, decimal ID, DLC, frame type, and TX node
- View bit layout and signal bit positions
- Check multiplex and extended multiplex information
- Read original DBC syntax for each message
- Review parse issues and validation issues
- Use light, dark, or system theme mode

CAN DBC Viewer is designed for automotive software developers, embedded engineers, diagnostic tool builders, and CAN data analysis workflows. It is a reference viewer, not a DBC editor, CAN logger, or live bus monitor.

Install CAN DBC Viewer when you need a focused Android tool for reading CAN DBC files and reviewing message and signal definitions.

What’s new

Initial release of CAN DBC Viewer.

- Open DBC files on Android
- View CAN messages, signals, nodes, and value descriptions
- Search messages, signals, and values
- Check CAN ID, DLC, TX/RX nodes, and bit layouts
- Review DBC syntax, parse issues, and validation issues
- Supports light, dark, and system themes