Debugger for OneTrust CMP

About

Debugger for OneTrust CMP is a developer and QA tool for inspecting and debugging the OneTrust Consent Management Platform — right in the browser, without digging through the console.

Open the popup on any page that uses OneTrust to see exactly what the CMP is doing, then reproduce, test, and fix consent issues in seconds.

WHAT YOU CAN DO

• State — instantly detect OneTrust and read the active consent groups, OptanonConsent / AlertBoxClosed cookies, and which OneTrust APIs are available on the page.

• URL switches — build and apply OneTrust debug parameters (otreset, otpreview, otgeo) to test geolocation rules and preview vs. production behavior on first load.

• Consent matrix — discover categories from GetDomainData(), toggle them, and apply consent either at runtime (OneTrust.UpdateConsent) or by rewriting the OptanonConsent cookie for tenants that ignore runtime updates.

• Signals — compare OneTrust groups against Google Consent Mode, and surface IAB TCF (__tcfapi) and GPP signals found on the page.

• Diagnostics — a readable tree plus copyable JSON: decoded OptanonConsent, cross-device/identity (dataSubjectParams) details, geolocation, the banner & Google Consent Mode config, and the full cookie catalogue.

• Runtime controls — trigger common OneTrust actions (Accept all, Reject all, open the Preference Center, close the banner) and change language or geolocation for quick checks.

• Cookie reset — clear OneTrust/consent cookies for the current domain to test a fresh banner and first-load behavior.

PRIVACY

Everything happens locally in your browser. The extension sends no telemetry and no analytics, and it contacts no external servers. Your settings are stored only in chrome.storage.local. See the privacy policy for details.

WHO IT'S FOR

Analytics engineers, web developers, and QA teams who implement or troubleshoot OneTrust and consent-driven tracking.

DISCLAIMER

This is an independent developer/QA tool. It is not affiliated with, endorsed by, or sponsored by OneTrust LLC. "OneTrust" is a trademark of its respective owner and is used only to describe interoperability.