In today’s automotive landscape, the market is saturated with OBD scan tools, many prioritizing profit over genuine features. This makes finding reliable, professional OBD software for your PC or laptop a time-consuming task. As experts at obd-de.com, we’ve sifted through the noise to highlight established innovators in automotive diagnostics, companies with a proven track record of OBD2 expertise.
Many car owners might overlook the critical differences between a basic check-engine-light reader and professional-grade OBD-2 software favored by seasoned automotive technicians. This article focuses on the latter, specifically software for laptops, as we believe PC-based solutions offer distinct advantages over mobile apps. While mobile OBD apps are readily available, many suffer from abandonment due to market competition and are often developed by freelancers rather than established car companies.
PC-based OBD-II software, in contrast, has a history dating back to the early 1990s. Popular smartphone OBD2 applications often compromise functionality for visually appealing interfaces. We advocate for PC-based software due to its robust capabilities and professional focus.
Having rigorously tested numerous car software packages over a decade, we present our selection of 7 noteworthy OBD2 diagnostic software packages for your PC.
Ultimately, the best choice depends on your specific needs. We encourage you to explore their websites, assess their trustworthiness, and select the software that best suits your automotive requirements.
To optimize your reading experience, we’ve summarized each review in bullet points.
A fundamental principle: While all OBD2 software shares the core function of diagnosing and reporting vehicle faults, the primary differentiator lies in the quantity of fault codes detected. More comprehensive software identifies a broader spectrum of errors.
OBD-2 do-it-yourself diagnostics empowers car owners, placing them on par with mechanics in fault detection. However, it’s crucial to remember that identifying malfunctions is only the first step. Physical repairs of broken components remain essential and should not be disregarded by simply clearing codes within the software.
Key Features Shared by These OBD Car Scanner Software Options:
- Premium Solutions: These are not free OBD software. For those seeking free OBD2 software (compatible with ELM327 scan tools), consider EasyOBD, widely regarded as the best “free” option available.
- Windows Dominance, with Mac Exceptions: The automotive industry primarily targets Windows. However, we’ve identified and reviewed two excellent OBD2 software options for macOS catering to Mac users.
- Expert-Based Reviews: Our reviews are grounded in extensive technical and car mechanical expertise, drawing upon a combined 60 years of experience. We’ve strived for unbiased evaluations, focusing on objective critique and judgment.
- ELM327 Compatibility: All software supports ELM327 OBD2 interfaces across various connection types: Bluetooth, WIFI, and USB. Installation instructions for ELM327 can be found here.
- Unidirectional Operation: None of the featured software offers bidirectional control. Bidirectional functionality requires high-end OEM scan tools, typically priced at $1000+. For detailed information on workshop-grade OBD2 scanners, explore our blog for reports on “obd2 scanner“.
Understanding Scanners, Code Readers, and Diagnostic Tools: A Brief Introduction
The evolution of automotive engineering since Karl Benz’s first petrol car in 1885 has been remarkable. Cars have transformed from basic transportation to sophisticated machines equipped with advanced technology, from air conditioning and navigation to autopilot systems.
Before this technological surge, cars were simpler and easier to repair. Today’s vehicles are increasingly intelligent, capable of navigating routes, adjusting fluids based on driving conditions, and, importantly, detecting engine errors.
Most modern cars feature an on-board diagnostics (OBD2) port, granting access to data from the engine control unit (ECU). This data empowers technicians to diagnose car problems and determine necessary maintenance.
Simple 3-Step OBD2 Diagnostics Process:
Step 1: Connect an ELM327 adapter to your car’s OBD port.
Step 2: Install the necessary ELM327 drivers on your PC.
Step 3: Launch your OBD2 software and click “Connect.” It’s user-friendly!
Accessing ECU data requires a computer and specialized software to interface with the OBD port. This demand has fueled the development of OBD software for laptops and mobile devices by numerous automotive companies, aiming to empower end-users with ECU data access.
Typically, OBD diagnostic solutions comprise two components: the car scanning hardware (interface cable/adapter) and the OBD-2 software for PC (to interpret data via the OBD port). The hardware establishes the connection between the ECU and the computer.
The PC OBD software then reads and analyzes this data, providing insights to the user. The primary objective is to facilitate vehicle maintenance and extend vehicle lifespan.
Below, we present seven distinct car diagnostic software packages from different vendors, each representing, in our expert opinion, the top choices currently available for your Windows or Mac laptop or PC.
(Disclaimer: We have no affiliate relationships with any of these vendors. Total Car Diagnostics offers these recommendations solely to provide a sincere and helpful guide to scanners that meet your diagnostic needs.)
1. TOAD PRO
TOAD® (Total OBD & ECU Auto Diagnostics) is a comprehensive OBD software suite recognized and utilized by car manufacturers. It performs in-depth vehicle health checks, diagnosing over 15,000 common issues. TOAD also includes ECU remapping software for performance optimization and fuel efficiency enhancements, appealing to technically inclined users.
This software, typically reserved for authorized repair shops, manufacturers, and mechanics, is made accessible to the public by TOAD.
Its key strengths lie in broad vehicle compatibility and real-time data monitoring with customizable graphical displays.
TOAD is suitable for both home users seeking to save on repair costs through DIY diagnostics and professional mechanics requiring advanced diagnostic and analysis capabilities.
Trusted by law enforcement, dealerships, car enthusiasts, and manufacturers across approximately 80 countries, TOAD is a globally recognized solution.
TOAD PRO Benefits:
- Check Engine Light Diagnostics: Provides detailed descriptions of detected problems for effective repairs.
- Enhanced Fault Code Detection: Identifies “extra” OBD fault codes often missed by other scanners.
- Cost Savings on Repairs: Pinpoints faulty components, enabling cost-effective parts sourcing and mechanic negotiations.
- Performance Tuning: Offers ECU remapping capabilities for performance optimization and fuel efficiency. Learn more about ECU tuning with TOAD
- Touchscreen Optimization: Optimized for touch input, ideal for devices like Surface Pro.
- Fuel Efficiency Improvement: Contributes to reduced fuel consumption.
- Extended Engine Lifespan: Promotes proactive maintenance for engine longevity.
- Real-time Vehicle Data: Provides live insights into vehicle operation.
- DIY Repair Empowerment: Facilitates self-diagnosis and reduces repair expenses.
- Driving Confidence: Enhances peace of mind through proactive vehicle health monitoring.
- Real-time Data Visualization: Displays live data in tabular and graphical formats.
Explore TOAD PRO further at their website…
2. AutoEnginuity’s ScanTool
AutoEnginuity ScanTool stands out with its brand-specific diagnostic options for manufacturers including BMW, Ford, GM, Chrysler, Nissan, Hyundai, Kia, Land Rover, Jaguar, Honda, and Porsche, among others. Compatible with both Windows and iOS, ScanTool delivers broad platform accessibility.
This software enables rapid scanning of vehicle trouble codes, sensors, and IM240 data to determine necessary services. Its depth of coverage is a key differentiator.
ScanTool accesses systems beyond basic OBD-II, including ABS, airbag, instrument cluster, transmission, and numerous other controllers.
This comprehensive depth encompasses live data, bidirectional controls, adaptive resets and learning functions, and system tests.
The primary drawback is its higher price point, positioning it primarily for professional workshops handling high volumes of vehicles and requiring OEM-level bidirectional functionalities.
AutoEnginuity ScanTool Benefits:
- Data Logging Versatility: Logs data in XML format for browser compatibility and CSV for spreadsheet analysis.
- Customizable Sensor Data: Allows users to tailor data display parameters like sampling rate, ranges, units, and scaling.
- User-Friendly Data Presentation: Presents data concisely and understandably, moving beyond raw data streams.
Learn more about AutoEnginuity ScanTool on their website…
3. PCMScan
PCMScan is a feature-rich, generic OBD-II diagnostic software compatible with a wide array of OBD hardware interfaces. It provides real-time visual charting, logging, viewing, and playback of recorded data. PCMScan also displays Vehicle Diagnostic Trouble Codes (DTCs), Freeze Frame data, and other vehicle information. This universal software supports US, Asian, and European vehicles manufactured post-1996.
However, a significant downside of this otherwise strong Windows OBD2 software is its lack of updates for over 7 years. This stagnation means it misses at least 500+ new PIDs (sensor data) incorporated into other contemporary applications. This suggests either development abandonment or a shift in focus elsewhere.
PCMScan Benefits:
- Customizable Dashboard: Users can personalize the software interface to their preferences.
- Dyno and Drag Features: Includes performance measurement tools.
- Data Logging: Records diagnostic data for later analysis.
- DTC Reading and Clearing: Reads both stored and pending Diagnostic Trouble Codes and clears the Check Engine Light.
- Freeze Frame Data: Accesses and clears stored Freeze Frame data.
- Extensive Trouble Code Definitions: Supports thousands of vehicle trouble code definitions.
Worthy Features:
- Printing and Print Preview: Comprehensive printing support for all views, including virtual dashboards.
- OBD-II Terminal: For advanced users, a built-in terminal allows sending custom OBD-II commands.
- Javascripting Support: Enables custom calculations on OBD-II parameters and data for power users.
- Configurable Alerts System: Allows users to set up alerts based on parameter conditions, with sound warnings or data bookmarks.
- Unit System Flexibility: Supports both English and Metric (SI) units.
- CSV Data Export: Customizable data export to .CSV format for easy integration with programs like Excel.
- Real-time Stamps: Export with real-time stamps for correlation with external data logs.
- PID Priority Assignment: Allows prioritizing PIDs to accelerate data capture rates.
- Broad Interface Support: Compatible with Autotap, VIA, Multiplex Engineering, ELM320, ELM322, ELM323, ELM327 (all versions), and SAE-J2534 compliant OBD-II interfaces.
Explore PCMScan further at their website…
4. ProScan
Total Car Diagnostics acquired ProScan in 2015. This OBD2 software has been enhanced for 2018 and beyond, incorporating support for the latest sensor data to keep pace with evolving vehicle technology. ProScan is now included in the TOAD LITE package.
ProScan is recognized as one of the most user-friendly Windows OBD2 software options available. With a history dating back to 2003, its strengths lie in consistent stability and development rooted in deep automotive protocol and sensor expertise. It’s compatible with any standard ELM327 hardware.
A standout feature of ProScan, less prominent in competitors, is its accurate 0-60mph (100km) timing performance measurement. This allows for precise live measurements of speed and torque gains after ECU adjustments or for evaluating performance enhancements from aftermarket modifications.
ProScan Benefits:
- Fuel Economy Adjustment: Offers potential fuel economy optimization based on driving habits.
- Vehicle Connection Manager: Features a streamlined interface for program launch and vehicle connection.
- Freeze Frame Data Monitoring: Allows review of data from past events.
- Oxygen Sensor Tests: Displays results of oxygen sensor tests, pinpointing malfunctioning sensors.
- One-Button Diagnostic Report Generator: Simplifies report creation.
- Readiness Monitor Status: Displays vehicle emissions readiness monitor status.
- Oxygen Sensor Location: Shows the number and location of oxygen sensors on the vehicle.
- Oxygen Sensor Functionality Test: Verifies correct oxygen sensor operation.
- Data Recording and Playback: Records and replays diagnostic data.
- Instantaneous Fuel Efficiency Calculation: Calculates real-time MPG/liters per km for MAF-based vehicles.
- Trip Cost Calculation: Estimates real-time trip cost based on distance and fuel efficiency.
- Performance Statistics: Calculates performance metrics like 0-60 mph, 1/4 mile time, trap speed, and 1/8 mile time.
- Horsepower and Torque Estimation: Estimates horsepower and torque curves, generating dyno charts.
- Printable Diagnostic Reports: Generates printable reports for vehicle diagnostics.
- Unit Conversion: Supports conversion between English and metric units.
Explore ProScan further at their website…
5. OBD Auto Doctor
OBD II Auto Doctor is a highly refined and user-friendly OBD2 car diagnostic tool. We consider it the best OBD software for the Mac OS X platform. It allows users to check and reset codes and directly communicate with the car’s OBD2 system.
While exceptionally powerful, it might be considered “too advanced” for casual car owners. For users seeking a balance of simplicity and professional-grade reliability, Movi software (reviewed below) is a compelling alternative.
Overall, OBD II Auto Doctor is exceptionally resourceful in data extraction, making it an ideal tool for serious car enthusiasts wanting in-depth automotive understanding.
OBD II Auto Doctor Benefits:
- Comprehensive Diagnostics: Supports DTCs, Freeze Frame data, and MIL status.
- Fuel and Emission Monitoring: Tracks fuel emission and consumption data.
- Real-time Indicators: Displays OBD2 real-time parameters.
- Data Visualization Options: Offers numerical and graphical data views.
- Data Sharing: Enables data sharing via email.
- ECU Information Retrieval: Reads VIN and calibration ID of the ECU.
- Extensive DTC Database: Includes a built-in database of over 14,000 alarm codes.
Learn more about OBD II Auto Doctor on their website…
6. Movi and Movi Pro
Movi/ Movi Pro excels in its ability to read vehicle engine control module (ECM) data with straightforward setup on Mac computers. For users prioritizing simplicity without sacrificing reliability in fault code retrieval and precise live PID parameter reporting, Movi is an excellent OBD app. We find it more intuitive and less overwhelming than OBD II Auto Doctor.
The free version of Movi is adequate for most regular car owners, while the paid Pro version unlocks DTC fault code clearing capabilities.
Movi software can extract a vehicle’s complete historical fault record (DTCs) and clear the ‘check engine light’ while identifying problematic trouble codes.
Movi and Movi Pro Benefits:
- Real-time Data Viewing: Displays real-time data to aid in engine failure diagnosis.
- DTC Management: Reads and clears DTCs.
- Freeze Frame Data Access: Views and clears freeze frame data.
- Fuel Monitoring: Tracks fuel consumption and economy.
- Virtual Performance Metrics: Monitors virtual horsepower and torque.
- Multi-Parameter Graphing: Graphs up to 4 engine indicators simultaneously.
Explore Movi/ Movi Pro further on their website…
7. EOBD Facile
EOBD Facile OBD software is known for its simplicity and ease of setup, facilitating car-computer connection via ELM327 interfaces on Mac computers. Available in the App Store, EOBD Facile is a close competitor to Movi in user-friendliness. The choice between them often comes down to personal preference for GUI interface.
Once connected, users can diagnose issues, view results in real-time, access vehicle information, and monitor car sensor readings.
EOBD Facile Benefits:
- Check Engine Light Clearing: Clears the check engine light.
- Engine Code Diagnostics: Displays engine codes and their descriptions.
- Manufacturer Error Code Monitoring: Monitors manufacturer-specific error codes.
- GPS Data Logging: Maintains a backlog of GPS data records.
Learn more about EOBD Facile on their website…
When selecting car diagnostic software, consider your specific needs. Some users prioritize advanced functions like real-time data monitoring, while others seek basic engine health and safety assessments.
This concludes our expert review of the best OBD software, based on years of hands-on experience with various car diagnostic tools.
7 Best OBD2 Software in 2025 and Beyond: Reviewed and Tested
