01
Live View
Real-time message log and data table, bus-load chart, active-node discovery and heartbeat states - the whole network at a glance.
CANopen Monitoring Tool · v1.0.4
Next-Gen CANopen Tool
Inspect, decode, and control CANopen networks in real time
CANopenNode CompatibleModern UINetwork ManagementNo hardware limitsCross-PlatformAI Ready (MCP)
Now in beta — download and use it however you like.
After beta it stays free for personal use; commercial
users will need a license.
PCANKvaserInnomakerSocketCAN
Interoperable · Hobby Friendly
Built to be compatible with CANopenNode.
CANOpenScope interoperates with the open-source CANopenNode stack - the same frames, the same Object Dictionary, the same PDO mappings. The app itself is not open source, but it is hobby-friendly: free for personal use, with logical commercial pricing.
01 · Capabilities
Everything a CANopen engineer needs.
Six tightly integrated tools, one native app. A layered architecture keeps decoding fast and hardware support broad.
02
Data Visualizer
Plot PDO-mapped variables as line or bar charts over a rolling window. Zoom, pan, pause - watch control loops breathe.
03
Timeline
Every decoded frame on its own lane - NMT, SYNC, PDO, SDO, heartbeat, EMCY, ERR. SystemView-style pan, zoom and hover decoding.
04
SDO & PDO
Read and write the Object Dictionary, map and monitor PDO channels, auto-import EDS, XPD and XDD device profiles with on-wire COB-ID resolution.
05
Conformance Test
A CiA-style suite against any target node - bootup, state transitions, SDO, PDO, heartbeat - with per-test status and fix guidance.
06
AI Ready · MCP
An in-app AI Gateway exposes live bus data over Model Context Protocol. Point any MCP-capable assistant at it to inspect and drive the network from natural language. Compatible with most AI agents, including GitHub Copilot, Hermes, Claude Code, and more.
Use case Ask the assistant: “Tell me STM32G0 canopen state and change its heartbeat to every 1000ms”
Projects
Save your whole setup as a .csp project and reopen it any time.
- Node names and COB-ID labels
- Device profiles (EDS, XPD, XDD) per node
- PDO mappings and selected Object Dictionary entries
Bus Explorer & manual TX
Browse every node and object on the bus, and send any frame by hand.
- Manual transmit: CAN ID, DLC, data bytes
- Optional periodic send, in ms
- Hex or decimal input in every ID and value field
Protocol coverage
The CiA 301 services you debug every day, decoded and driveable.
- NMT state commands and node reset
- SDO read / write with type-aware values
- Node scan via SDO 0x1000 (IDs 1-127) + heartbeat
- RTR frames and error-frame decoding
Roadmap Record & Playback is coming in a future release.
02 · AI Gateway
Let your AI assistant read the bus.
CANOpenScope embeds an MCP server. Any MCP-capable assistant can query live frames, nodes and Object Dictionaries - and, only if you allow it, control capture or transmit.
Connect in one line
- In CANOpenScope, open Settings → AI Gateway and turn on Enable AI Gateway (MCP server).
- Start the Live View so decoded frames flow in.
- Register the endpoint with your assistant:
Claude Code
claude mcp add --transport http canopenscope http://127.0.0.1:10531/mcpCodex
codex mcp add --url http://127.0.0.1:10531/mcp canopenscopeCursor, Claude Desktop and others: add a Streamable HTTP MCP
server at http://127.0.0.1:10531/mcp
- Loopback only - bound to 127.0.0.1, never exposed to the network.
- Off by default - you turn the gateway on.
- Transmit is separate -
send_packethas its own switch.
Tools
ReadAlways available when the gateway is on
bus_statusAdapter, bus and capture state, counterslist_nodesDetected nodes with NMT stateread_packetsRecent frames, filter by ID or directionpacket_statsTraffic by CAN ID and COB typeod_lookupObject Dictionary from the node's profilelist_recordings · read_recordingSaved captures and their framesControlOpt-in switch
set_live_capture · set_recordingStart or stop capture and recordingTransmitSeparate opt-in switch
send_packetPut real frames on the bus03 · Comparison
The honest table.
Where CANOpenScope stands against the established tool.
Capability
CANOpenScope
CANopen Magic
SDO read / write (Object Dictionary)
✓
✓
PDO Tools
✓
✓
Network tools
✓
✓
Live bus-load chart
✓
✓
Node Naming
✓
✓
Node Auto Discovery
✓
✕
Timeline view (packet TX & RX)
✓
✕
Unlimited message filters
✓
✕
Visual PDO mapping + device profile import
EDS · XPD · XDD
EDS
PDO visualization (meters & graphs)
✓
✓
CiA-style conformance test suite
✓
✕
Simulate nodes
✕
✓
Record & playback (soon)
Soon
✓
AI Gateway · MCP ready
✓
✕
Linux support
✓
✕
Free for personal use
✓
✕
Feature data based on publicly documented capabilities. Verify against the latest releases.
04 · Pricing
Free for personal use.
Hobby friendly - no subscriptions, no watermarks, no time-limited trial. Commercial and team use is licensed at logical, straightforward prices.
Personal & Hobby
Free
For personal, hobby and evaluation use. All features, unlimited networks.
DownloadCommercial
Custom
Logical pricing for companies and teams. Tell us about your setup and we'll send a quote.
Get in touch05 · Download
Get CANOpenScope
v1.0.4 for Windows 10/11 and Linux x64. Get the certified build from the Microsoft Store, or use the direct downloads below.
Windows 10/11 · x64
CANOpenScope for Windows
v1.0.4Microsoft StoreCertified Store-signed · automatic updates
Get it from Microsoft StoreInstaller (.exe)Uncertified Setup wizard · 28.4 MB
DownloadPortable (.zip)Uncertified No install · unzip and run · 31.0 MB
DownloadThe Microsoft Store build is certified and updates automatically. The direct downloads are not certified - use them only if you can't access the Store.
Linux x64
CANOpenScope for Linux
v1.0.4Debian / Ubuntu (.deb)Recommended Debian package · 24.1 MB
DownloadInstall manually
sudo apt install ./CANOpenScope-v1.0.4-linux-x64.debOr
One line setup
wget -O CANOpenScope.deb "https://static.canopenscope.com/1.0.4/CANOpenScope-v1.0.4-linux-x64.deb" && sudo apt install ./CANOpenScope.debPortable (.tar.gz) Extract & run ./canopenscope · 26.5 MB
DownloadInstall the .deb with apt, or use the portable build below - no install needed. SocketCAN is supported out of the box.
Windows 10/11 x64Linux x64PCAN · Kvaser · IXXAT · GS-USB · Innomaker · SocketCANFree for personal use · Company use requires a license
06 · FAQ
Questions, answered.
What is CANOpenScope?
A native desktop CANopen monitoring tool. It decodes, filters and visualizes live bus traffic, and provides professional tools like SDO Object Dictionary access, PDO mapping and CiA-style conformance testing.
Is CANOpenScope compatible with CANopenNode?
Yes. CANOpenScope is built to interoperate with the open-source CANopenNode stack. It speaks the same protocol, Object Dictionary and PDO mappings, so nodes running CANopenNode are decoded, monitored and controlled like any other compliant device. CANOpenScope itself is not open source, but it is hobby friendly - free for personal use, with logical commercial pricing.
What CAN hardware does it support?
PCAN, Kvaser, IXXAT, GS-USB, Innomaker and SocketCAN (Linux). Adapters are driven through a Python bridge built on python-can, so new interfaces are added without touching the protocol engine.
How does licensing work?
CANOpenScope is free for personal use. Company use requires a license.
Which platforms are supported?
Windows 10/11 and Linux x64. On Windows, get the certified build from the Microsoft Store, or use the direct installer and portable builds. On Linux, install the .deb package or run the portable build. The GUI is Flutter-based, so other platforms are on the roadmap.
Can I import my existing device profiles?
Yes - EDS, XPD and XDD device profile files are parsed to populate per-node Object Dictionaries and PDO channels, and PDO mappings auto-import into your project.
07 · Contact
Get in touch
Questions, feedback, or licensing - send us a message and we'll get back to you.