The best Chrome extensions for buying a used car
A browser extension can do a used car's homework for you while you scroll a listing, but the tools are built for very different people. Some are for shoppers, some for dealers flipping cars. Here is what each one is actually for, which are free, and what they tell you.
| Extension | Built for | Price | What it tells you |
|---|---|---|---|
| CarVitalsthis site | Used-car buyers | Free | Reliability by year, open recalls, owner-reported problems by mileage, cost to own |
| CarEdge | Buyers focused on price | Free tier | Market price, target price range, price history, window sticker |
| Carbly | Dealers & flippers | Paid | Wholesale/auction market values from a VIN |
| MarketCheck | Dealers | Paid | Fair-price analysis vs live market listings |
| Voyn | Flippers | Freemium | Marketplace deal-finding (Facebook, Craigslist) with estimated resale margin |
For shoppers: reliability vs price
Most consumer tools answer one of two questions. Price tools (CarEdge is the best-known free one) tell you whether the asking price is fair against the market. Reliability is the other half, whether the car is worth buying at any price, and it is what CarVitals focuses on: the model year's verdict, open recalls, the problems owners actually report and at what mileage, and the true cost to own. The two are complementary; a fair price on an unreliable year is still a bad buy.
For dealers and flippers
Carbly, MarketCheck, and Voyn are aimed at people who buy cars to resell. They surface wholesale and auction values, live-market pricing, and resale margins, genuinely useful if you are trading, but priced and designed for the trade, not for someone buying one car to drive.
What none of them replace: a history report
No reliability or pricing extension tells you what happened to the specific car, the accidents, title brands, and ownership history. That is a vehicle history report, and it is worth pairing with whatever extension you use. See our honest take on free Carfax alternatives and what a free VIN check covers.
The short version
If you are a shopper who wants to know whether a used car is reliable and what it will cost to own, a free reliability tool plus a history report covers the ground that matters. Add CarVitals to Chrome for the reliability half, or first read the full used-car buying checklist.
Tool descriptions reflect each product's stated focus as of 2026 and may change. CarVitals is this site; see how we build our data.