What is AutoDiag?
AutoDiag is an AI automotive tool that helps mechanics and repair shops interpret vehicle error codes offline. It ships as a downloadable app, a 396KB ZIP you extract and run locally by opening index.html, so it works without an internet connection in the workshop. At its core is a database of OBD-II error codes paired with likely causes, symptoms, and a diagnosis procedure for each, plus engine codes drawn from vehicle documentation with model and year information. A local AI helps interpret codes and point toward what to check next, and the tool also recommends timing tools with purchase links when a repair calls for them. Because everything runs on the mechanic's own machine, there is no account or cloud dependency to manage. For BestAIFor readers running an independent garage, AutoDiag is a practical, one-time-purchase diagnostic reference rather than a subscription platform. It is sold for a single price of €50.00 through Payhip, with no tiered plans.
What is AutoDiag used for?
Looking up OBD-II and engine error codes with causes, symptoms, and diagnosis steps, offline in a repair shop
How much does AutoDiag cost?
Pros and cons
Pros
- OBD-II error code database with causes, symptoms, and a diagnosis procedure for each
- Runs fully offline as a local app, no internet needed in the workshop
- Local AI helps interpret codes and suggest what to check
- One-time €50 purchase, no subscription
Cons
- Delivered as a ZIP you extract and run manually, not a hosted app
- Single price with no trial or tiers shown
- Interface text and docs are partly in Italian
- Local-only means no automatic updates to the code database
Questions about AutoDiag
What is AutoDiag used for?
AutoDiag is used by mechanics and repair shops to look up OBD-II and engine error codes and understand their likely causes, symptoms, and diagnosis procedure. It runs offline as a local app so it works in the workshop without internet.
Does AutoDiag need an internet connection?
No. AutoDiag is delivered as a downloadable ZIP that you extract and run locally by opening index.html, and it functions offline, which suits a garage with unreliable connectivity.
How much does AutoDiag cost?
AutoDiag is a one-time purchase of €50.00 sold through Payhip, with a single price point and no tiered or subscription plans.
Who is AutoDiag for?
It is aimed at professional automotive mechanics and repair workshops who want a practical, offline diagnostic reference for error codes rather than a cloud subscription service.
What are the best alternatives to AutoDiag?
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