Bad Cookie

Review cookie risk on your current tab and remove cookies you choose. Cookie values never leave your device.

e what stays and what goes. The internet is complicated enough. Understanding your data shouldn't be. Take back your browser. Bad Cookie is a privacy-first extension that reveals exactly what websites leave behind. Spot hidden trackers, identify potential privacy concerns, and remove unwanted data—with all analysis performed 100% locally on your device. ★ Understand Your Risk See clear Low, Medium, High, or Extreme cookie ratings based on cookie attributes and supported risk indicators. Ratings highlight potential concerns, not confirmed compromise, giving you the context you need without the scare tactics. ★ Targeted Cleanup & Safe Purge You control what you remove. Delete individual cookies or clear supported site data, including Cache, Local Storage, and IndexedDB. Clean up the junk without clearing everything and losing the logins you need. (Note: Deleting active cookies may sign you out of sites). ★ Optional Tracker Protection Stop trackers before they load. Optionally block third-party requests matching Bad Cookie’s built-in tracking rules using Chrome’s native browser blocking system, keeping your browsing fast and private. ★ Strict Privacy (100% Local Analysis) Cookie and exposure assessments run entirely on your device. Bad Cookie does NOT upload your cookie values or browsing data to external servers. The extension’s code ships with the app—no remote code and zero data collection.