Using the Live Data Monitor and OBD Tools
Real-time multi-parameter graphing and a clear-codes utility, for workshops with a USB OBD-II adapter.
Live Data Monitor
With a connected USB (or paired Bluetooth) ELM327-style adapter, the Live Data Monitor continuously polls and graphs multiple OBD-II parameters at once while you're actively diagnosing a running vehicle - set a threshold per parameter to flag an anomaly, and export the session as CSV or JSON once you're done.
OBD Tools (clear codes)
A standalone "clear codes" utility (OBD-II Mode 04) - deliberately kept separate from diagnosis intake, since clearing codes destroys the stored/pending/permanent codes and freeze-frame data a report is built from. Only use this after a repair is actually complete.
Browser requirement
Both tools need Chrome, Edge, or Opera on desktop - this is a real platform limitation (Web Serial isn't available on mobile or in Safari/Firefox at all), not something we can work around. The page tells you clearly if your browser doesn't support it.