Debug tracking without installing anything

Three tools that run in your browser, built on the same code as the Tag Master extension. Nothing you paste leaves the page, and there is no account and no limit.

Tracking request decoder

Paste any hit from GA4, Google Ads, Meta, TikTok or 59 other platforms and read every parameter by name, with the mistakes each platform drops or misreports.

In the extension: every request on the page, live, tied to the push that caused it.

Open the tool →

GTM container viewer

Type a GTM ID and see what the container publishes: tags and their settings, triggers as conditions, variables, consent and custom templates.

In the extension: checks, zones and sequencing, and which triggers’ events arrived on the page.

Open the tool →

Consent Mode decoder

Read gcs and gcd — or a whole request URL — as the four Consent Mode v2 signals, how each was set, and what is wrong.

In the extension: the consent sequence on the page, and every vendor that kept sending after a denial.

Open the tool →

All three, on every page, as it happens

The Tag Master extension does what these tools do one paste at a time — continuously, in Chrome’s side panel, on the site you are debugging.

Add to Chrome — Free