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Updated: 06 Apr 2026

10 Best Diagnostic Software

#1 Best Pick
Veepeak OBDCheck BLE+ Bluetooth OBD2 Scanner Car OBD-II Diagnostic Scan Tool Check Engine Light Code Reader for iOS & Android

Veepeak OBDCheck BLE+ Bluetooth OBD2 Scanner Car OBD-II Diagnostic Scan Tool Check Engine Light Code Reader for iOS & Android

Brand: Veepeak
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  • GENERIC OBD-II FUNCTIONS – read & clear trouble codes for check engine light (CEL or MIL), view freeze frame data, I/M readiness, and live sensor data to help monitor vehicle health and diagnose check engine problems.
  • DO MORE: Compatible with ELM 327 supported Apps including Car Scanner ELM OBD2 (recommended for generic OBD-II functions), Torque (for Android), OBD Fusion, and vehicle-specific Apps including BimmerCode*, BimmerLink*, OBD JScan, Dr. Prius, for some advanced functions. Note: Check the App for detailed functions. some Apps or in-App features require separate purchase.
  • BLUETOOTH CONNECTION: Supports Bluetooth LE & Classic on Android, and Bluetooth LE on iOS. For Bluetooth LE, no pairing is required — just plug in the device, open the app, and connect from within the app. Android head units may not be supported.
  • VEHICLE COMPATIBILITY – compatible with MY 2006+ gasoline & 2007+ diesel cars and light trucks in Australia (MY2006+ in New Zealand also supported) for generic OBD II functions. For hybrid plug-in and electric vehicles, please check in Car Scanner ELM OBD2 App and see if there is a suitable connection profile.
  • *APP LIMITATIONS: Model year before 2008 are not supported for BimmerCode or BimmerLink. In addition, G & U series are not fully supported for the two Apps. NOT compatible with MHD, xHP, ProTool, bootmod3, or other programs that require specialized hardware.
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#2 Best Value
ANCEL VD700 Full Systems OBD2 Scanner Diagnostic Tool for Volkswagen VW Audi Skoda Seat, ABS Transmission SRS System Faults Diagnosis for VAG Vehicles with Battery Registration, DPF Oil EPB TPMS Reset

ANCEL VD700 Full Systems OBD2 Scanner Diagnostic Tool for Volkswagen VW Audi Skoda Seat, ABS Transmission SRS System Faults Diagnosis for VAG Vehicles with Battery Registration, DPF Oil EPB TPMS Reset

Brand: ANCEL
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  • 【Professional Advanced Diagnostic Tool for VW Owners】 The ANCEL VD700, an upgraded version of the ANCEL VD500, is an advanced scan tool designed for VW owners.(Please note: Supported model years are up to 2023. Not compatible with pure electric vehicles (BEVs). Please provide your car model and year to confirm compatibility.) It offers full-system diagnostics and professional maintenance functions.Compared with having these service done by a shop, this obd2 scanner for VW will save you a bunch of money and time
  • 【All-in-One Specific Functions for VAG Vehicles】Having trouble with your VAG vehicle? The ANCEL VD700 offers comprehensive maintenance functions, including throttle position adaptation, brake pad reset, TPMS reset, steering angle learning, oil service reset, injector learning, and battery registration, etc. Don't have to go to dealer anymore. (NOTE: The VD700 does not have any coding capabilities. Special features vary by vehicle, include car model and year, please con-tact us in time.)
  • 【Full-System Diagnostic, Locate Problem for VAG Vehicles】 The ANCEL VD700 code reader for VW supports full-system diagnostics, such as ABS, SAS, SRS, ESP, TPMS, Transmission, Engine, Immobilizer, and Battery systems. Efficiently help you diagnose vehicle issues, prevent potential problems, and ensure your vehicle remains in top condition
  • 【No Hidden Costs, No Extra Charges】Tired of hidden charges? Unlike other devices that require additional fees, ANCEL VD700 offers 100% full access to all features, with no hidden costs. Help you enjoy peace of mind and save maintenance costs
  • 【OBD 6 Modes for Most Vehicles】OBD 6 modes for OBD II vehicles, VD700 can read/clear, display fault code definitions, turn off the CEL (Check Engine Light), read data stream, test EVAP system, read I/M and retrieve VIN information. Auto-detect vehicle model makes it easy to use. Ideal for individuals and auto repair shops
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#3 Budget Pick
Software Trace and Memory Dump Analysis: Patterns, Tools, Processes and Best Practices (Software Diagnostics Services Seminars)

Software Trace and Memory Dump Analysis: Patterns, Tools, Processes and Best Practices (Software Diagnostics Services Seminars)

Brand: OpenTask
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#4 Top Choice
Car Diagnostic Tool ELM327 PIC18F25K80 CD Support OBD2 Protocols Replacement Kuga

Car Diagnostic Tool ELM327 PIC18F25K80 CD Support OBD2 Protocols Replacement Kuga

Brand: Generic
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  • [Replacement for ] : Includes functionality for classical 2006‑2016, new 2012‑2015, kuga 2013‑2015, and models.
  • [Portable and Easy to Use] : Compact design with drivers and instructions included, for diagnosing car issues anytime, anywhere.
  • [Compatible Softwares] : Works seamlessly with forscan, elmconfig, ff2, and focccus for comprehensive diagnostics.
  • [Fast and Accurate Diagnosis] : Firmware version v1.5 and best pic18f25k80 chip ensure quick and precise results.
  • [Special Design with Switch] : Connects different can buses like ms can and hs can, providing convenience and ease of use.
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#5 Popular Choice
Veepeak OBDCheck BLE Bluetooth OBD II Scanner Adapter Dongle Auto Check Engine Code Reader Diagnostic Scan Tool for iOS & Android

Veepeak OBDCheck BLE Bluetooth OBD II Scanner Adapter Dongle Auto Check Engine Code Reader Diagnostic Scan Tool for iOS & Android

Brand: Veepeak
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  • OBD-II DIAGNOSTICS: Helps you identify reasons behind the check engine light (CEL or MIL), allowing you to read and clear trouble codes yourself, providing useful information including freeze frame, O2 sensor & on-board monitor test results, live data, and I/M readiness to help you monitor vehicle performance.
  • COMPATIBLE WITH A VARIETY OF OBD APPS: Car Scanner ELM OBDII, OBD Fusion, Torque (Android only), Infocar, BimmerCode*, BimmerLink*, OBD JScan, Dr. Prius, OBDocker, etc. Note: App not included; some Apps or features require separate purchase.
  • WIDE VEHICLE COMPATIBILITY: Compatible with model year 2006+ gasoline and 2007+ diesel vehicles in Australia (for generic OBD II diagnostic functions). For EVs or PHEVs (which do not use standard OBD-II protocols), check with Veepeak for compatibility before purchase, or check in Car Scanner ELM OBD2 App to see if there is a proper connection profile.
  • COMPATIBLE WITH IOS & ANDROID: Supports Bluetooth LE for iOS (requires direct in-app connection; do not connect via Bluetooth settings) and Classic Bluetooth for Android phones or tablets (Android head units not supported).
  • *Note: When used with BimmerCode, it only supports 2008+ E, F, I, and 2008+ R series (pre-2008 models or G/U series not supported). Not suitable for pre-2008 models for BimmerLink.
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#6 Top Pick
Troubleshooting with the Windows Sysinternals Tools

Troubleshooting with the Windows Sysinternals Tools

Brand: Microsoft Press
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  • Microsoft Press
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#7 Top Pick
Electric Vehicle & Hybrid Diagnostics: EV Battery Systems, BMS, Thermal Management, Power Electronics, and Software Troubleshooting for Modern Cars: 4

Electric Vehicle & Hybrid Diagnostics: EV Battery Systems, BMS, Thermal Management, Power Electronics, and Software Troubleshooting for Modern Cars: 4

Brand: Independently published
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#8 Top Pick
ANCEL AD410 Enhanced OBD2 Scanner Live Data Car Code Reader Clear Fault Codes Instantly, Automotive OBD 2 Fault Diagnostic Scan Tool for All OBDII Vehicles 1996+, Black/Yellow

ANCEL AD410 Enhanced OBD2 Scanner Live Data Car Code Reader Clear Fault Codes Instantly, Automotive OBD 2 Fault Diagnostic Scan Tool for All OBDII Vehicles 1996+, Black/Yellow

Brand: ANCEL
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  • [TURN OFF ENGINE LIGHT INSTANTLY] – Quickly Read & Clear Fault Codes. The universal obd2 scanner diagnostic tool quickly reads and clears stored emissions-related codes, pending codes, and provides code definitions. With over 42,000 built-in DTC lookups, you can easily identify faults without the need for Google searches. Reset the MIL, check monitor readiness before smog tests, and understand your vehicle's health before costly repairs. NOTE: The fault code can be cleared after solving the underlying problem, and the code reader itself cannot directly help you repair the vehicle
  • [ENHANCED OBDII DIAGNOSTICS] – Comprehensive System Testing. This engine code reader offers advanced diagnostics, including testing of O2 sensors and EVAP systems. Perform a leak test on your vehicle's EVAP system and monitor the fuel tank's integrity. The O2 sensor test helps fine-tune the air/fuel mixture, improving fuel efficiency and reducing emissions—saving you money at the pump and reducing your car’s environmental impact. NOTE: The AD410 is mainly for engine diagnostics, it does not support ABS, SRS, Transmission systems
  • [WIDE COMPATIBILITY] – Trusted by YouTube Star Scotty Kilmer. Featured by Scotty Kilmer on his YouTube channel, the AD410 OBD 2 Scanner works on most U.S. vehicles (code reader for cars and trucks) from 1996 and newer. It supports all OBDII protocols, including KWP2000, ISO9141, J1850 VPW, J1850 PWM, and CAN. With multi-language support (English, German, French, Spanish, Finnish, Dutch, Russian, and Portuguese), this car code reader is ideal for international users. NOTE: Check compatibility with your vehicle model before purchasing
  • [PLUG AND PLAY & OFFLINE DIAGNOSTICS] - User Friendly Design. Most Bluetooth scanners rely on apps to operate, meaning they useless when you’re stranded roadside without network access. The AD410 solves this. Simply plug it into your vehicle's OBD-II port – no phone, app, or internet required – to instantly read fault codes and monitor real-time data streams. Equipped with a 2.4-inch TFT true-color display (262K colors) and an icon-and-text combined UI design, it’s easy to use even for beginners. Whether for roadside emergency repairs, remote area breakdowns, or daily vehicle condition monitoring, the AD410 is a trusted partner you can rely on
  • [DIAGNOSTIC REPORTS & FREE LIFETIME UPDATES] - The AD410 car diagnostic scanner tool allows you to review, save, or print detailed diagnostic trouble code reports. Plus, with lifetime free software updates, you’ll always have the latest features and bug fixes. Simply download the updates from the ANCEL website and follow the easy on-screen installation instructions. (Powered directly from your vehicle's OBDII connector, this diagnostic tool doesn' t need a battery or charger.)
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#9 Top Pick
ANCEL AD310 Universal Enhanced OBD2 Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool, Read and Clear Error Codes for 1996 or Newer OBD II Protocol Vehicle (Black)

ANCEL AD310 Universal Enhanced OBD2 Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool, Read and Clear Error Codes for 1996 or Newer OBD II Protocol Vehicle (Black)

Brand: ANCEL
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  • [OBDII Protocols and Car Compatibility]: Many cheap car scan tools do not really support all OBD2 protocols. This is not the case with the AD310 obd2 scanner as it can support all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. This car diagnostic tool also has extensive vehicle compatibility with 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs, as well as newer OBD2 and CAN vehicles both domestic and foreign.
  • [Check Engine Light Doctor]: The ANCEL AD310 obd2 scanner is one of the best-selling OBD II scanners on the market and is recommended by Scotty Kilmer, a YouTuber and auto mechanic. It can easily determine the cause of the check engine light coming on, quickly read and clear diagnostic trouble codes, read live data & hard memory data, view freeze frame, perform EVAP system tests, check I/M monitor readiness status, and collect vehicle information. Instead of taking your car to a mechanic shop, you can use it to check car trouble codes, fix issues by yourself, and determine whether your car is ready to pass the annual inspection.
  • [Accurate Fast and Easy to Use]: The AD310 code reader can help you or your mechanic understand if your car is in good condition, provides exceptionally accurate and fast results, reads and clears engine trouble codes in seconds. If you want to find out the cause of the check engine light, this device will let you know immediately and fix the problem right away without any car knowledge. No need for batteries or a charger, get power directly from the OBDII Data Link Connector in your vehicle.
  • [Sturdy and Compact]: Equipped with a 2.5 foot cable made of very thick, flexible insulation. It is important to have a sturdy scanner as it can easily fall to the ground when working in a car. The AD310 obd 2 scanner is a well-constructed mechanic tool with a sleek design. It weighs 12 ounces and measures 8.9 x 6.9 x 1.4 inches. Thanks to its compact design and light weight, transporting the device is not a problem. The buttons are clearly labelled and the screen is large and displays results clearly.
  • [Home Necessity and Worthy to Own]: This is an excellent car diagnostic scanner for travel or home use—unlike Bluetooth OBD2 scanners that require an internet connection, it works completely offline, making it reliable anywhere. Lightweight and compact (just 12 ounces!), it slips easily into your backpack for on-the-go repairs during road trips or fits neatly on the dashboard for quick access in your vehicle. Beyond portability, it delivers fast, accurate performance and covers various car brands, perfect for anyone needing a straightforward tool to check their vehicle.
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#10 Top Pick
Pomya Car Diagnostic Tool with Best PIC18F25K80 Chip, Powerful Softwares Compatible for Replacement for ELM327 PIC18F25K80 FTDI Fit for Ford, ABS Material

Pomya Car Diagnostic Tool with Best PIC18F25K80 Chip, Powerful Softwares Compatible for Replacement for ELM327 PIC18F25K80 FTDI Fit for Ford, ABS Material

Brand: Pomya
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  • [EASY INSTALLATION] Installation is a breeze with included driver and instructions, and a helpful video guide is available if needed.
  • [POWERFUL COMPATIBILITY] Works on various supported vehicles including fit for Ford, , and Kuga, with a special design for connecting different CAN buses.
  • [ACCURATE DIAGNO fit for SIS] Fast and precise diagnosis thanks to the V1.5 firmware and PIC18F25K80 chip.
  • [ENHANCED FUNCTIONALITY] Supports all OBD2 protocols and provides added functionality fit for Ford series with hidden functions.
  • [PORTABLE & CONVENIENT] Compact and lightweight for easy carrying, perfect for daily use with powerful softwares like FORScan and Elmconfig.
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