Vector provides a free command-line utility called (part of the XL Driver Library).
An MF4 often contains a channel like EngineTemp calculated as (CAN_Byte * 0.75) - 40 . A raw BLF file only stores the original CAN byte ( 0xA3 ). If you convert without carrying the DBC or A2L file, the BLF becomes a raw hex dump—unreadable for human analysis.
Thus, “MF4 to BLF” is not merely an update; it is a migration from a to a database model of data storage. mf4 to blf
stands for Binary Logging Format . It was also developed by Vector Informatik as the modern replacement for the legacy BLF (the old "Vector Binary Log" is now often called "BLF v2"). The current BLF is the native logging format for Vector's CANalyzer and CANoe software.
New formats like and ROS2 bags are emerging, but the legacy of CANoe ensures BLF's survival. Vector provides a free command-line utility called (part
stands for Measurement File Format version 4 . It is the successor to the older MDF (Measurement Data Format) standard, primarily developed by Vector Informatik. MF4 has become the industry standard for recording ECU (Engine Control Unit) calibration and measurement data.
This is the industry-standard ASAM Measurement Data Format (version 4) used for recording time-series data from vehicle networks like CAN, CAN FD, and LIN. It is highly efficient for large datasets and is often the default output for modern data loggers. If you convert without carrying the DBC or
Python 3.8+, install via pip:
If you are struggling with the conversion, consider these alternatives: