Open TRC files in your browser
The trace PCAN-View and PCAN-Explorer write while they watch a CAN bus through PEAK's adapters. Open one right here, every message in a table, or its signals with its DBC beside it. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your log opens as a row for each frame, or with its DBC beside it as each message's signals on one timeline.
- A row for each frame • Time, bus, ID, type, direction and bytes
- Sort and filter • Counts for every column
- Drop its DBC with it • Every signal on one timeline
- Export • CSV, Excel, JSON or Parquet, or the signals as PNG
About TRC
PEAK-System makes the PCAN adapters that plug a computer into a CAN bus, and its PCAN-View, PCAN-Explorer and PCAN-Basic save what they saw as a TRC trace. python-can writes it too.
A TRC is text: a header of ; lines with its version, when the trace began and, from version 2.0, its columns, then a line for each message with its number, its time in milliseconds, its type, bus, ID, direction, DLC and data bytes in hex. Versions 1.1 to 1.3 add a column each, and 2.0 brought CAN FD.
Filepeek reads it in your browser a slice at a time, every version from 1.0 to 2.1, and lists every message in the table viewer: its time from the trace's start, bus, ID, type, direction, DLC and bytes, to sort, filter and search like any table. Drop it with its DBC and each message's signals are decoded onto one timeline instead, a lane for each signal in its unit. Save the messages as CSV, Excel, JSON or Parquet, or the signals' view as PNG and their values between two cursors as CSV.
PEAK CAN trace
.trc
Format
- MIME type
- text/plain
- Made by
- PEAK-System
Inside the file
- Header
- Its version, start time and columns
- Messages
- A line each, its bytes in hex
- Types
- Data, CAN FD, remote and error frames
- Time
- Milliseconds from the start
Opens in every browser
Filepeek opens TRC traces from version 1.0 to 2.1 in Chrome, Edge, Firefox and Safari. On their own, browsers show them as text or download them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open TRC
- WindowsPCAN-View, free, or PCAN-Explorer
- MacNo app built in opens it
- iPhone and iPadNo app opens it
- AndroidNo app opens it
Questions
How do I open a TRC file without PCAN-View?
Drop it on this page or choose Peek a TRC. Every message opens as a row in your browser, on a phone too.
Which versions open?
Every TRC version PEAK's tools write, from 1.0 to 2.1, with CAN FD's messages from 2.0 on.
How do I see the signals?
Drop the trace together with its DBC, or a folder with both. Each message the DBC describes is decoded into its signals, a lane each on one timeline in its unit.
Can I see only one ID?
Yes. Filter the ID column to it, or search for it, and only its messages show. Sorting by ID puts each ID's messages together in time order.