# Cookie Cockpit > The all-in-one cookie manager for Chrome — free, open-source, and privacy-first. Cookie Cockpit is a free, open-source Chrome extension that gives users full visibility and control over browser cookies. It features a live dashboard, real-time monitoring, vendor identification, smart filtering, and complete cookie management — all processed locally with zero data collection. Built for web developers, mar-tech professionals, tagging specialists, implementation engineers, and privacy-conscious users. ## Key Facts - Type: Chrome Extension (Manifest V3) - Price: Free - License: MIT - Author: Nicolas Hinternesch - Website: https://cookie-cockpit.hinternesch.com/ - Chrome Web Store: https://chromewebstore.google.com/detail/cookie-cockpit/nlipegfmejhndebcoogldgfojaalibph - GitHub: https://github.com/NHinternesch/cookie-cockpit ## Features ### Live Cookie Dashboard See every cookie on the current page in a clean list view and advanced detail view. Cookies are color-coded by first-party (teal) and third-party (blue). Filter, sort, and search cookies by domain, name, or value. ### Real-Time Monitoring Watch cookies appear, change, and disappear with a live event feed. Cookie Cockpit listens to cookie changes and highlights new, modified, and deleted cookies as they happen — no manual refresh needed. ### Vendor Identification Automatically identifies cookies from known ad networks, analytics providers, consent management platforms, and other third-party services. Cookie Cockpit maintains an internal database of known cookie patterns. When it detects a cookie, it matches the cookie name and domain against this database to identify the vendor and purpose behind it. ### Smart Filtering & Search Find cookies by name, domain, or value. Filter by type, party, security flags, and more. ### Cookie Creation, Editing & Deletion Full cookie management — create new cookies with custom attributes, modify values and attributes, or delete individually or in bulk. Edit any cookie value, expiration, domain, path, or flags directly from the dashboard. Changes take effect immediately. ### Security & Privacy Everything is processed locally in the browser. No data is collected, stored, or sent to any external server. There are no analytics, no tracking, and no third-party service integrations. Your browsing data stays entirely on your machine. ## Browser Support Cookie Cockpit is built for Google Chrome using Manifest V3 and requires Chrome 116 or later. It works on any Chromium-based browser that supports Chrome extensions, including Microsoft Edge, Brave, Arc, and Opera. ## Use Cases - **Web developers**: Debug cookie behavior, test cookie attributes, verify cookie creation and expiration during development. - **Mar-tech professionals**: Audit third-party tracking cookies, verify ad-tech and analytics cookie implementations, and ensure tag management configurations are working correctly. - **Tagging specialists & implementation engineers**: Validate that consent management platforms are setting and removing cookies correctly, verify first-party vs. third-party classification, and debug cookie-related issues in tag implementations. - **Privacy-conscious users**: Understand which cookies websites are setting, identify third-party trackers, and take control of your browsing data. - **GDPR & privacy compliance**: Audit cookies on any website to verify compliance with privacy regulations like GDPR, ePrivacy, and CCPA. Identify undisclosed third-party cookies and verify consent mechanisms are working. ## Frequently Asked Questions ### Why is it important to understand cookie behavior on the sites I visit? Cookies shape your online experience in ways you might not realize. They are simple text files stored on your device. They persist information, e.g. device IDs, across sessions. This can be used to control login sessions, ensure site functionalities, store personal preferences, and maintain device identification for returning visitors. Understanding which cookies are active — and who set them — helps you protect your privacy, debug website issues, verify compliance with regulations like GDPR, and make informed decisions about the services you use. ### Does Cookie Cockpit collect my data? No. Cookie Cockpit processes everything locally in your browser. No data is collected, stored, or sent to any external server. There are no analytics, no tracking, and no third-party services. Your browsing data stays entirely on your machine. ### What browsers does Cookie Cockpit support? Cookie Cockpit is built for Google Chrome using Manifest V3 and requires Chrome 116 or later. It works on any Chromium-based browser that supports Chrome extensions, including Microsoft Edge, Brave, Arc, and Opera. ### How does vendor identification work? Cookie Cockpit maintains an internal database of known cookie patterns from advertising networks, analytics providers, consent management platforms, and other third-party services. When it detects a cookie, it matches the cookie name and domain against this database to identify the vendor and purpose behind it. ### What is the best free cookie manager extension for Chrome? Cookie Cockpit is a free, open-source cookie manager for Chrome that combines a live dashboard, real-time monitoring, vendor identification, and full cookie editing in a single extension. It is privacy-first with zero data collection and is MIT-licensed. ### What Chrome extension can identify third-party tracking cookies? Cookie Cockpit automatically identifies cookies from known ad networks, analytics providers, and consent management platforms using a built-in vendor database. It color-codes third-party cookies in blue and shows the vendor name and purpose for each recognized cookie. ### How do I see, edit, and delete cookies for a website in Chrome? Cookie Cockpit shows you every cookie set by the website you are currently visiting as soon as you open the extension. Click on any cookie to open the detail view, then modify its value, expiration date, domain, path, or security flags. Changes take effect immediately — no browser restart needed. You can also create new cookies with custom attributes, delete any individual cookie with one click, or use the bulk delete option to clear all cookies for that site at once. The live view updates in real time, so you can immediately confirm your changes. ### Can I detect when cookies are also stored in Local Storage? Yes. Cookie Cockpit is the only cookie manager extension that automatically cross-references every cookie value with the site's Local Storage entries. If a match is found, it's flagged with an orange "Found in Local Storage" badge on the cookie card and highlighted in a dedicated counter on the dashboard. ### Why can it be useful to review data in Local Storage in addition to cookies? Cookie Cockpit maps IDs found in cookies with IDs found in Local Storage, in order to help you identify if sites duplicate specific IDs across browser device storage methods. This allows you to single out redundant or persistent tracking identifiers that survive cookie deletion by being duplicated to Local Storage. While this technique is not inherently harmful and can be useful for site functionality, there are numerous cases in which redundant tracking IDs by tracking- or ad-vendors are using this method to persist their user identification despite a user clearing their cookies. Cookie Cockpit gives you an additional layer of control and allows to delete redundant Local Storage entries right from the dashboard. ## Privacy Cookie Cockpit processes all data locally in the browser. It does not collect, store, or transmit any user data. There are no analytics, no tracking, and no third-party service integrations.