Classify cookies — and browser storage keys — by vendor and purpose against a built-in database of 60+ well-known trackers: analytics, advertising, session replay, consent, and strictly-necessary. Use it as an input to a privacy or consent-banner audit, or just to see what is riding along in your own browser.
100% client-side — runs entirely in your browser, nothing is sent anywhere · works offline
Reads the cookies and storage this page’s own
origin can see — document.cookie plus the keys of
localStorage and sessionStorage — and classifies each
against the database. Nothing is transmitted; the classification happens locally.
HttpOnly ones (those are hidden from JavaScript by design). So on
webtracking.org this list is short — that is the browser’s same-origin
rule working, not a bug. To audit the cookies a different site sets, open that site and either paste
its document.cookie into the next tab, or run a full audit with
ad.rip.
Paste a cookie set and get a vendor + purpose breakdown.
Accepts three shapes: a document.cookie string
(a=1; b=2), a newline list of name=value, or a raw
Set-Cookie dump (attributes after the first ; are ignored).
Names are deduped, last value wins.
Tip: on any site, open the console and run copy(document.cookie), then paste here.
This tool classifies what a browser exposes. It can’t watch the network calls each tag fires, the third parties they hand data to, or whether any of it respects consent. That full behavioural audit is what ad.rip does.
Everything runs in this browser; no account, no server, no request of any kind. Related: GPC, Do-Not-Track & consent · all free tools