AI car diagnosis
Free, no registration. In words it is fast, with an adapter it is accurate, with the program it is complete.
In your words
A description, fault codes or a dashboard photo — the AI works with what you tell it.
You are here
More accurate
Adapter in the browser
ELM327 over USB or Bluetooth LE: the site reads the VIN and fault codes itself — a diagnosis based on the car's data.
Connect an adapter →
Maximum
Diagnost program
Every module, live data, history by VIN, a built-in AI mechanic. Windows and macOS.
Download free →
Photos of the dashboard or a scanner screen, up to 4: choose files, drop them here or paste from the clipboard.
Free diagnoses left: 5
Free diagnoses left: 5

Diagnost for Windows and macOS — it sees the car itself
The online chat works with what you tell it. The program sees the car itself — and its built-in AI reads the data straight from the modules.
Polls EVERY control unit on any make — not just the engine
Built-in AI mechanic sees the car directly
Checks the Toyota and Lexus hybrid battery
Works with USB, Bluetooth, BLE and WiFi adapters
AI diagnosis is a qualified starting point, not a verdict: it does not replace physical inspection. Do not perform repairs affecting brakes, fuel system or airbags without proper skills.