Your Smart Car Diagnostic Companion
Turn your phone into a professional OBD-II scanner. Read & clear engine fault codes, monitor real-time vehicle data, and keep your car healthy — all for free.
Trusted by Drivers Worldwide
Downloads
OBD-II Protocols
Languages
Vehicle Models Since
Powerful Diagnostics
Everything You Need to Keep Your Car Healthy
Mini OBDII car diagnostic scanner gives you professional-grade tools to understand and maintain your vehicle.
Fault Code Reading & Clearing
Read and clear diagnostic trouble codes (DTCs) from your vehicle's ECU. Instantly understand why your check engine light is on and turn it off.
Real-Time Dashboard
Monitor live engine data including RPM, speed, coolant temperature, battery voltage, and more — all in a clean, intuitive interface.
Live Data Stream
View comprehensive real-time data streams from your vehicle's sensors — engine load, fuel trim, intake pressure, and dozens more parameters.
Freeze Frame Analysis
Capture and analyze freeze frame data to understand exactly what conditions triggered a fault code in your vehicle.
Performance Testing
Measure your vehicle's acceleration performance and track key driving metrics to understand your car's capabilities.
Emission Readiness Monitor
Check Malfunction Indicator Lamp (MIL) status and monitor emission readiness tests to ensure your vehicle passes inspection.
See Mini OBDII in Action
A clean, intuitive interface designed for both beginners and car enthusiasts
Get Started in 3 Easy Steps
Plug In Adapter
Connect a Bluetooth 4.0 or WiFi ELM327 adapter to your car's OBD-II port, usually located under the dashboard.
Download the App
Install Mini OBDII for free from the App Store or Google Play. No subscription or in-app purchases required.
Connect & Diagnose
Open the app, connect via Bluetooth or WiFi, and start diagnosing your vehicle in seconds.
Works with Your Car
Mini OBDII supports all OBD-II compliant vehicles worldwide with 9 protocols.
Supported Vehicles
- US Vehicles: 1996+
- European Vehicles: 2000+ (EOBD)
- Asian Vehicles: 2005+
- Russian Vehicles: 2012+
Compatible Adapters
- ELM327 v1.5+ (Bluetooth 4.0 BLE)
- ELM327 v1.5+ (WiFi)
- V020 Series Bluetooth Adapters
Platform Support
- iOS 11+ (iPhone, iPad, Mac M1+)
- Android 5.0+
Documentation
Help Center
What Drivers Say
Real Reviews from Real Users
“Very easy to use — just turn on Bluetooth and location, it connects automatically! Perfect for quick diagnostics.”
Joshua L.
App Store Review
“Thanks for the quick fault code reading and clearing. Turned off my old car's engine light in under 60 seconds.”
David C.
App Store Review
“Works great with my ELM327 adapter. Simple, straightforward, and completely free. Exactly what I needed.”
Mike R.
Google Play Review
“Very easy to use — just turn on Bluetooth and location, it connects automatically! Perfect for quick diagnostics.”
Joshua L.
App Store Review
“Thanks for the quick fault code reading and clearing. Turned off my old car's engine light in under 60 seconds.”
David C.
App Store Review
“Works great with my ELM327 adapter. Simple, straightforward, and completely free. Exactly what I needed.”
Mike R.
Google Play Review
“Very easy to use — just turn on Bluetooth and location, it connects automatically! Perfect for quick diagnostics.”
Joshua L.
App Store Review
“Thanks for the quick fault code reading and clearing. Turned off my old car's engine light in under 60 seconds.”
David C.
App Store Review
“Works great with my ELM327 adapter. Simple, straightforward, and completely free. Exactly what I needed.”
Mike R.
Google Play Review
“Very easy to use — just turn on Bluetooth and location, it connects automatically! Perfect for quick diagnostics.”
Joshua L.
App Store Review
“Thanks for the quick fault code reading and clearing. Turned off my old car's engine light in under 60 seconds.”
David C.
App Store Review
“Works great with my ELM327 adapter. Simple, straightforward, and completely free. Exactly what I needed.”
Mike R.
Google Play Review
“Best free OBD app I've found. No ads, no subscriptions, no hidden fees. Just works.”
Sarah T.
Google Play Review
“Connected to my car instantly via Bluetooth. Shows all the real-time data I need — RPM, speed, temperature.”
Carlos M.
App Store Review
“Perfect for DIY mechanics who just need basic diagnostics without paying for expensive scan tools.”
Alex P.
Google Play Review
“Best free OBD app I've found. No ads, no subscriptions, no hidden fees. Just works.”
Sarah T.
Google Play Review
“Connected to my car instantly via Bluetooth. Shows all the real-time data I need — RPM, speed, temperature.”
Carlos M.
App Store Review
“Perfect for DIY mechanics who just need basic diagnostics without paying for expensive scan tools.”
Alex P.
Google Play Review
“Best free OBD app I've found. No ads, no subscriptions, no hidden fees. Just works.”
Sarah T.
Google Play Review
“Connected to my car instantly via Bluetooth. Shows all the real-time data I need — RPM, speed, temperature.”
Carlos M.
App Store Review
“Perfect for DIY mechanics who just need basic diagnostics without paying for expensive scan tools.”
Alex P.
Google Play Review
“Best free OBD app I've found. No ads, no subscriptions, no hidden fees. Just works.”
Sarah T.
Google Play Review
“Connected to my car instantly via Bluetooth. Shows all the real-time data I need — RPM, speed, temperature.”
Carlos M.
App Store Review
“Perfect for DIY mechanics who just need basic diagnostics without paying for expensive scan tools.”
Alex P.
Google Play Review
FAQ
Frequently Asked Questions
Start Diagnosing Your Car Today
Download Mini OBDII for free and take control of your vehicle's health. Available on iOS and Android.
Available in 12+ languages
