Bad Cookie
Your browser remembers a lot about you. You should get a say in what it keeps.
Most privacy tools either simplify everything into a meaningless "block trackers" button, or expose technical jargon without explaining what any of it actually means. Bad Cookie is different. We translate browser tracking into actual English, so you can see who is tracking you, understand why, and kick out what you don't want.
You wouldn't put a bad cookie in your mouth. Don't let one live in your browser.
Core capabilities
See what's tracking you
Review cookies and related privacy indicators in plain English. Indicators help you investigate; they do not prove what a website does with your information.
You shouldn't need a computer science degree to protect your Privacy
We translate raw identifiers (like _fbp or _ga) into human-readable explanations.
Identify Third-Party Domains
Review cookie domains and known provider indicators associated with accessible websites.
Surface Ad-Tech & Data Brokers
Spot when domains are connected to advertising, behavioural profiling, or data-broker ecosystems.
Understand Privacy Risks
Learn the difference between essential site functionality (like keeping you logged in) and cross-site tracking.
Core capabilities
Kick out what you don't want
When you see a tracker you don't like, you can remove it — from one domain to a full reset.
Targeted Purge
Review a domain and remove supported website data within the scope you confirm.
Third-Party Purge
Review third-party cookies and remove selected data. Removal can affect website features or sign you out.
Block Pixel Trackers
Stop known tracking pixels and beacons from loading as third-party requests.
Wipe All Data
Remove supported cookies, cache, and website storage. This does not erase server-held information or your saved passwords and browsing history.
Privacy & trust architecture
A privacy product that practices what it preaches
We do not have a surveillance business model. We do not sell your browsing history. We are built strictly on Manifest V3 architecture.
Local-First
Your browsing data stays in your browser.
Minimal Permissions
We only request access to what is strictly necessary to clean and protect your browser.
No account or payment
This release has no sign-in, payment provider, paid licence, or remote entitlement check.
Important behaviour notes
A few things to know before you purge
- Using "Wipe All Data" will sign you out of websites and clear local preferences (like shopping carts).
- Purging specific data may require you to log back into certain services.
- If you enable tracker blocking, you will need to reload your currently open tabs for the new rules to apply.