OBD Scanner

Live OBD-II data in your browser

Connect a Bluetooth LE ELM327 adapter to read live data from your car, decoded with the community OBDb signal definitions. Everything runs on this device; nothing is uploaded.

Plug the adapter into the OBD port, switch the ignition on, then choose the adapter from the list, which shows likely OBD adapters. Only Bluetooth LE adapters work in a browser.

Try it without a car

The demo replays real responses captured by the OBDb community, animated by a simulated drive.

Choose your vehicle

From the OBDb vehicle index. A vehicle's signal definitions are downloaded from GitHub when you choose it, and kept on this device.