Free Car Tools

Everything you need before a repair: decode your VIN, check for open safety recalls, and pick the right scanner to read your fault code — all free, most of it running right in your browser.

🛟 Recall Check

See if your car has an open safety recall — live, official NHTSA data by year, make and model, with the risk and the free fix.

🛠️ Maintenance Schedule

Enter your mileage to see what service is due now and what’s coming — oil, filters, spark plugs, fluids and belts, based on common intervals.

🛞 Tire Size Decoder

Decode a tire size like 225/45R17 94V — width, sidewall, rim, load index and speed rating — plus overall diameter to compare sizes.

⛽ Fuel Calculator

Convert MPG ↔ L/100km ↔ km/L and work out the fuel cost of any trip, in your own currency.

🔎 VIN Decoder

Decode any 17-character VIN instantly — country, manufacturer, model year and assembly plant — and validate the check digit. Runs in your browser.

🔌 OBD-II Scanners

A code reader confirms your exact fault code so you fix the right part the first time. Our picks for best overall, budget and all-systems scanners.

Diagnostic tools & gear

Independent buying guides for the diagnostic tools and gear that actually solve fault codes — what each does, the features that matter, and top picks.