Browser Extension
Klunk Score on every used-car listing.
A small Chrome extension that adds a reliability badge to every car you scroll past on Carvana, AutoTrader, and Cars.com. Free, no signup, no tracking.
Works on Chrome, Edge, and Firefox.
What it does
One badge. Every listing. Zero clicks.
You browse like normal
Scroll Carvana, AutoTrader, or Cars.com the way you already do. Nothing about your shopping experience changes.
Klunk reads the listing
The extension parses the make, model, and year from each listing card and looks up the matching Klunk Score on klunk.app.
A badge appears
Color-coded score from 0–100 right on the card. Click it to open the full vehicle dashboard with complaints and recalls.
What it does not do
Does not track which cars you look at.
The extension sends only a make/model/year tuple to klunk.app to fetch a score. Nothing identifying you, your IP cookies, your browsing history, or anything else.
Does not change prices, hide listings, or inject ads.
No price-comparison games, no affiliate-link rewriting, no upsells in your cart. Just a badge.
Does not require a sign-up.
Install and go. No account, no email, no password.
Does not work on sites it doesn't claim to work on.
The extension is restricted to Carvana, AutoTrader, and Cars.com. Every other site is invisible to it.
Read the full privacy policy.
Install
Get the Klunk extension
Live on the Chrome Web Store. Edge and Firefox builds are next.
Want a heads-up when Edge or Firefox lands? Email [email protected] with subject "extension" and we will reply.