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CAN Bus Analyzer

Decode live CAN frames, visualize bus waveforms, apply DBC files, and analyze bus performance in real-time

🔌 CAN Bus Topology - Live

Idle
0
Frames Captured
0.0%
Bus Load
0
Error Frames
0
Frames/sec

📊 Bus Load Timeline

Avg: 0%
CAN Trace - Idle
Ready. Press ▶ Start Capture to begin.

Frame Inspector

Select frame

Click any frame in the trace to inspect

Decoded Signals

0 signals
SignalRawPhysicalUnit
Load a DBC file to decode

CAN Bus Waveform (CAN_H / CAN_L)

● CAN_H● CAN_L
3.5V2.5V1.5V

Logical Bit Stream

CAN Differential Signaling: Dominant (0) → CAN_H=3.5V, CAN_L=1.5V | Recessive (1) → Both at 2.5V. Lower ID = Higher Priority (bitwise arbitration).

CAN Frame Bit-Level Decoder

Frame Fields

Signal Plots

Load a DBC and capture to see live plots

DBC Message Tree

Load a DBC file to browse

Message Statistics

IDNameCountCycleDLCBus %
No data

Frequency Distribution

Error Statistics

Error TypeCountLast Seen
CRC Error0-
Stuff Error0-
Form Error0-
ACK Error0-
Bit Error0-

Transmit CAN Frame

ID:DLC:
Data:

Error Injection

Inject errors to test ECU error handling & bus recovery

TEC (Transmit Error Counter)0
REC (Receive Error Counter)0
State: Error Active