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ELM327 Emulator

Published by autodiag2

OBD-II ELM327 adapter emulator for testing diagnostic apps

Open sourceGPL-3.0-only

Highlights

  • Emulates an ELM327 OBD-II adapter on Android.
  • Supports testing of diagnostic applications without vehicle hardware.
  • Provides a controlled target for adapter communication checks.
  • Useful for development and demonstration workflows.

About this application

ELM327 Emulator is an Android application that imitates an ELM327 OBD-II adapter. It is intended for testing diagnostic applications without connecting to a vehicle or a physical adapter. Developers and testers can use it as a target while checking how their software handles adapter communication and vehicle diagnostic responses.

The application is limited to Android and is distributed under the GPL-3.0-only license. Its purpose is narrow: it does not replace a real diagnostic session with an actual car, but provides an emulator for development, demonstration, and repeatable testing of OBD-II app behavior.

Where to get it

Android

  • App storeF-Droid

    From the publisher

    OpenOpens in a new tab

    Package identifier: com.github.autodiag2.elm327emu

    v28310.8 MBreleased 07/31/2026

    SHA-256 from the manifest published by F-Droid, compared on 08/04/2026

    6427395b4efce1b1629096971df691835d7632cc23217d09365a71c6e260db9b

We do not host this file, we do not scan it and we do not inspect its contents. Read what the source says, then decide for yourself.