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OBD-II Live Scanner

Read live engine data — RPM, speed, coolant temperature, battery voltage — over Bluetooth with a BLE OBD-II adapter, right in your browser.

✔ 100% free Mobile friendly ⚡ No account

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A scanner without the app

Using the Web Bluetooth API, AutoTools talks to BLE ELM327 class adapters (like OBDLink MX). Turn the ignition on, pair the adapter and watch live data.

  • Live RPM, speed, coolant and load
  • MAF and battery voltage
  • Works on Chrome for Android
  • Classic Bluetooth adapters are not exposed to browsers

FAQ

Bluetooth Low Energy (BLE) ELM327 adapters. Most cheap “Bluetooth OBD2” dongles are Classic Bluetooth and cannot be used from a browser.
This tool focuses on live data. Use the OBD-II Code Lookup for code meanings, and the diagnostic tool for guided fault-finding.
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