CookieYes Cookie Validator – Verify Browser Cookies

About

CookieYes Cookie Validator is a free Chrome extension for developers, QA teams, and privacy professionals to instantly verify browser cookies on websites using CookieYes.
Debug cookie consent banners, audit cookie categories, and detect unlisted cookies in seconds — no login, setup, or DevTools required.

What you can verify

✅ Which cookies fall under each CookieYes category, such as Necessary, Functional, Analytics, Performance, and Advertisement, and how they map to browser cookies.

✅ Which listed cookies are currently detected in the browser

✅Which listed cookies are missing from the browser

✅ Which browser cookies are not listed in your CookieYes configuration

✅ Cookie behaviour based on user consent choices in the banner

Key features

🔹 Instant cookie validation
Open the extension on any website using CookieYes and get a complete browser cookie comparison in seconds.

🔹 Detect unlisted cookies
Quickly identify cookies that exist in the browser but are not listed in your CookieYes cookie configuration or cookie consent setup.

🔹 Validate cookies by consent choices
Check whether cookies are being set according to the consent choices and cookie categories configured in the consent banner.

🔹 No login required
The extension reads CookieYes cookie configuration directly from the webpage. No dashboard access, API key, or account sign-in required.

🔹 Local-only processing
All browser cookie validation happens entirely within your browser. No cookie data, browsing activity, or personal information is collected, stored, or transmitted.

Who is this for?

- Web developers validating CookieYes implementations and cookie consent configurations
- QA teams testing cookie consent behaviour across staging, UAT, and production environments
- Privacy and compliance teams reviewing cookie declarations against GDPR and ePrivacy requirements
- Site owners monitoring newly added third-party scripts and tracking cookies

How it works

1. Install the extension from the Chrome Web Store
2. Pin the extension to your Chrome toolbar for one-click access
3. Open any webpage running CookieYes
4. Click the extension icon to instantly compare listed cookies with browser cookies

Privacy

CookieYes Cookie Validator does not collect, store, or transmit any personal data, cookie data, or browsing activity. All cookie validation and comparison are performed locally within your browser.

Disclaimer

CookieYes Cookie Validator is intended as a verification and debugging tool only and should not be considered a guarantee of legal compliance. Results depend on page state, browser configuration, consent settings, and user interactions at the time of validation. For full compliance assessments, consult a qualified legal or privacy professional.