What BLF files does this viewer support?
V1 supports the tested Vector object-header v1 path for classic CAN, CAN2, CAN FD, CAN FD 64, and supported CAN error frames. Unsupported object types are counted and shown.
01 Automotive CAN log workbench
BLF viewer,
made legible.
Inspect Vector Binary Logging Format files without CANoe, MATLAB, or a server upload. Raw CAN and CAN FD frames stay inside this browser tab.
LOGG→RAW FRAMES→CSV / ASC
INPUT / 001
Drop a Vector .blf trace
or choose a file · maximum 64 MiB
READY
Waiting for a Vector LOGG file.
01File-local
Your trace bytes are never uploaded.
02Fail closed
Truncated and unknown BLFs are rejected.
03Honest export
Skipped object types are counted and shown.
02 Trace inspection
Workbench
Parser runtimeStandby
NO TRACE LOADED
The frame table will activate after the LOGG header passes validation.
ERR
Unable to read trace
ACTIVE TRACE
—
—SUPPORTED FRAMES0—
CHANNELS0—
UNIQUE IDS0—
0 visible frames
Raw payload · timestamps relative to measurement start
#TIME (S)CHDIRTYPECAN IDDLCDATA (HEX)
No frames match the active filter.
03 V1 scope
Raw frames first.
Decoded signals later.
This viewer supports the tested Vector BLF object-header v1 path for classic CAN, CAN2, CAN FD, CAN FD 64, and supported error frames. DBC signal decoding, LIN, FlexRay, Ethernet, and proprietary attachments are intentionally not promised.
04 BLF file guide
Open BLF files online—without uploading them.
A Vector BLF file is a compact binary log used to store automotive bus traffic. This viewer turns supported raw CAN and CAN FD objects into a searchable table entirely inside your browser, so sensitive vehicle traces do not leave the tab.
- 01Choose a Vector BLF file
The browser checks the LOGG signature and declared file size before parsing.
- 02Inspect raw CAN frames
Review timestamps, channels, direction, CAN IDs, DLC values, and hexadecimal payloads.
- 03Filter and export
Search by CAN ID or payload, narrow the trace, then download the visible rows as CSV or ASC.
Does the BLF file get uploaded?
No. Selected trace bytes are handed to a browser Web Worker and parsed locally. Runtime dependencies load on demand from public package CDNs, but your BLF is not sent to them.
Can it decode DBC signals?
Not yet. This release focuses on honest raw-frame inspection and CSV or ASC export; it does not claim DBC, LIN, FlexRay, or Ethernet decoding.