If you find command lines intimidating, the asammdf project also has a Graphical User Interface (GUI). This is the easiest way for a one-off task.
The officially recommended tool for high-precision conversion is the Vector Logging Converter . convert blf to mf4 new
Here are the most reliable methods to convert your Vector .blf logs to the newer .mf4 format. 1. Vector Logging Converter (CANape/CANoe) If you find command lines intimidating, the asammdf
# 3. Append messages from the BLF reader to the MDF object # The 'append' method automatically handles timestamps and channel data mdf.append(log, overwrite=True) Here are the most reliable methods to convert your Vector
is a proprietary, message-based binary logging format developed by Vector Informatik GmbH. It's the native format for Vector's industry-standard tools like CANoe and CANalyzer. Its primary advantage is its high efficiency. BLF stores raw bus traffic (messages, error frames, and other events) in a compact, binary format, which results in significantly smaller file sizes and superior read/write performance compared to legacy text-based formats like ASC. While it's an excellent choice for internal recording and replay within the Vector ecosystem, its proprietary nature means it's not a universal standard for data exchange.
Last updated: April 2026