Show HN: CANviz – open-source CAN analyzer, J1939/CANopen, pip install

Category: devtools

Tags: can-bus, can-analyzer, j1939, canopen, automotive

Score: 7.5/10 (Innovation: 6, Technical: 8, Documentation: 9, Utility: 7)

CANviz is a browser-based CAN bus analyzer that installs with a single pip command and works with cheap USB adapters, providing live message tables, DBC decoding, signal plotting, and protocol decoders for J1939 and CANopen. Its innovative combination of a zero-setup web UI with professional-grade industrial protocol support fills a clear gap in the open-source automotive tooling space.

Target audience: embedded engineers, automotive engineers, robotics engineers, iot developers

Repository: https://github.com/Chanchaldhiman/CANviz · TypeScript · MIT · 241 stars

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