Chanchaldhiman

Chanchaldhiman / CANviz

Public

Open-source browser-based CAN bus analyzer. Works with low cost USB hardware.

automotive can can-bus canbus cantools
28
3
100% credibility
Found Apr 21, 2026 at 28 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

CANviz is a browser-based analyzer for CAN bus networks that supports affordable USB hardware for live monitoring, signal decoding, frame transmission, and session logging.

How It Works

1
🔍 Discover CANviz

You hear about a simple tool that lets anyone peek inside car and machine communication networks using cheap gadgets.

2
🛠️ Get it started

Follow one easy instruction on your computer and your web browser pops open ready to go.

3
🔌 Plug in hardware

Connect your affordable USB gadget to your computer and the network cable.

4
⚡ Watch live messages

Click connect and see network messages streaming in real time with IDs, data, and speeds updating instantly.

5
📄 Add decoding file

Upload a special description file to turn raw numbers into readable things like speeds or temperatures.

6
🎛️ Filter and interact

Narrow down to specific messages, send your own test messages, or save recordings for later.

✅ Analyze with ease

Now you effortlessly debug and understand your network traffic without expensive gear or hassle.

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Star Growth

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AI-Generated Review

What is CANviz?

CANviz is an open-source browser-based CAN bus analyzer that runs with a single `pip install canviz` and `canviz` command, opening a live dashboard at localhost:8080. It sniffs traffic from cheap USB adapters, shows real-time frames with ID, data, rates, and timestamps, plus DBC decoding, filtering, frame sending, recording to .asc/.csv, and replay. Built on Python/FastAPI backend with TypeScript/React frontend, it's optimized for Chrome among open source browser-based tools.

Why is it gaining traction?

It skips expensive hardware bundles and complex desktop installs like SavvyCAN, working plug-and-play with $8 FYSETC UCAN modules via gs_usb—no drivers or flashing. Filters persist in URLs for sharing, REST/WebSocket APIs enable scripting, and Raspberry Pi/SSH remote access fits headless setups. Among github open source tools, its one-command browser UI stands out for instant analysis without ecosystem lock-in.

Who should use this?

Automotive hobbyists debugging ECUs with low-cost CANable adapters, Raspberry Pi tinkerers sniffing vehicle buses, or embedded devs testing responses via the send-frame UI. Ideal for quick prototypes or learning CAN without committing to Vector/PEAK gear.

Verdict

Grab it for frictionless CAN sniffing on a budget—performs at 2k fps with solid docs—but 28 stars and 1.0% credibility score signal early-stage maturity; test your hardware first and contribute compatibility reports.

(198 words)

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