CookieViz
CookieViz is a free, open-source web tracking analysis tool developed by the CNIL, France's national data protection authority. It monitors the communication between your browser and websites you visit, revealing which third-party actors and data collectors receive your browsing information. The app can create manual or automated visit paths, analyse interactions through histograms, Voronoi diagrams and network graphs, and is particularly useful for security researchers, web developers, privacy advocates and anyone seeking transparency about their digital footprint. CookieViz is available on Windows, macOS and Linux and is distributed under an open-source license via the CNIL's GitHub repository.
AI Recommendation
1 suggestionCookieViz's last public release was version 2.3, published in June 2022, and there is no evidence of subsequent releases or ongoing development in the nearly four years since. The source code remains available on the CNIL's GitHub account as open source, but the project has not seen meaningful maintenance, and there is no native Apple Silicon build. Since an Intel-only build will stop running entirely when Apple removes Rosetta 2 in macOS 28 (September 2028), you will need to plan an alternative before then. If you rely on CookieViz for privacy analysis, check the CNIL GitHub repository periodically to see whether development resumes, or consider using alternative web traffic analysis tools like Wireshark (a free, native network protocol analyser used by security professionals) or the browser developer tools built into Safari, Chrome and Firefox, which can log and inspect third-party requests natively. For a more automated visual analysis similar to CookieViz, Privacy Badger from the Electronic Frontier Foundation or the cookie-management extensions uBlock Origin and Ghostery may cover some of the same use cases, though they differ in focus and capability.
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