CANviewer
view CAN log and DBC signals
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
View CAN log in your iPhone and analysis the data
CANviewer is a CAN log viewing tool designed for automotive electronics, ECU debugging, and field analysis.
You can import ASC and BLF CAN logs on iPhone, quickly view message time, CAN ID, direction, channel, DLC, and data bytes, and filter the messages you need by CAN ID, Rx/Tx, and channel.
After importing a DBC file, CANviewer can decode raw CAN data based on the signal definitions in the DBC file, convert hexadecimal data into physical values, and plot signal trends over time.
Key features:
- Import and view ASC / BLF CAN logs
- Filter messages by CAN ID, Rx/Tx, and channel
- Import DBC files and parse messages and signals
- Decode CAN data into physical signal values
- Compare multiple signal curves
- View curves in combined or separate charts
- Display X/Y axes, units, and data ranges
- Tap a curve to inspect the exact time and value
- Works offline; imported files are not uploaded
Use cases:
- Quickly inspect CAN logs in the field
- Analyze ECU signal trends
- Validate DBC signal definitions
- Support vehicle debugging and troubleshooting
- Assist engineers during road tests, business trips, and service work
CANviewer is not intended to replace complex desktop tools. It is a lightweight and direct mobile tool for CAN log viewing and signal analysis.
Ratings & Reviews
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- free to download and free tries everyday
The developer, 洋 刘, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 洋 刘
- Size
- 6.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- Simplified Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- CAN Log Viewer Pro $4.99
- Copyright
- © 2026 Yang Liu