Car diagnostic tools in plain words

Pick a car diagnostic tool that fits your car and your budget

Side-by-side picks for handheld scanners, phone adapters and pro scan tools, plus simple answers on codes and the check engine light. Start with the tool type, your car brand or the basics.

Latest guides

  • ANCEL AD310 Code Reader
    Handheld Scanners

    ANCEL AD310 vs AD410

    Compare ANCEL AD310 vs AD410 features, displays, code lookups and readiness checks to choose the engine code reader that fits your diagnostic needs.

  • Autel MaxiCOM MK808S
    Pro-Level Scan Tools

    Autel MaxiCOM MK808S Review

    Autel MK808S review: see how its full-system scans, active tests and service functions fit your garage, and what to check for your vehicle before buying.

  • Autel MaxiCOM MK808S
    Pro-Level Scan Tools

    Autel vs Launch Scan Tools

    Autel vs Launch scan tools: compare system coverage, active tests, service functions and wired or wireless connections to choose a tool for your garage.

  • Autel MaxiCOM MK808S
    Pro-Level Scan Tools

    Best Autel Scanners

    Compare Autel scanners for code reading, full-system diagnosis, bidirectional tests and TPMS service. Find a tool that fits your vehicle coverage and repair needs.

  • Autel MaxiCOM MK808S
    Scan Tools by Car Brand

    Best Diagnostic Tools for BMW and Mercedes

    Compare the best BMW diagnostic tool options and Mercedes scanners, from brand-focused readers to full-system tablets. Match features to your car and repair needs.

  • Innova 5210 Code Reader
    Handheld Scanners

    Best Car Diagnostic Tools for Home Use

    Compare the best car diagnostic tools for home use by system coverage, live data and service features. Find a scanner that fits your car and repair plans.

  • OBDLink MX+ Bluetooth Scanner
    Phone & Bluetooth Adapters

    Best OBD2 Scanners for iPhone

    Compare the best OBD2 scanner for iPhone by app support, code coverage, live data and service functions, then match an adapter to your car and needs.

  • Autel MaxiCOM MK808S
    Scan Tools by Car Brand

    Best OBD2 Scanner for VW and Audi

    Compare the best OBD2 scanner for VW and Audi owners, from VAG coding tools to full-system handhelds, with practical advice on fit, setup and key features.

  • OBDLink MX+ Bluetooth Scanner
    Handheld Scanners

    Best OBD2 Scanners With Live Data

    Compare the best OBD2 scanner with live data for clear graphs, useful engine readings and wider system access. Find a tool that fits your car and phone.