webtracking.org
Free tools

Tools that do real work

No sign-up to run them. Point them at a URL or paste your data and get an answer. These are the same engines behind our paid products — the free tier is genuinely useful, not crippled.

Analytics Beacon Decoder

● live

Paste a raw GA4, Universal Analytics, Adobe Analytics, or Meta Pixel request — get every parameter decoded and labelled in plain English.

UTM & Campaign Governance

● live

Build and validate campaign URLs against the UTM Standard and your own taxonomy — single, bulk, and audit modes.

GTM Container Explorer

● live

Inspect a public GTM container: every tag, trigger, variable, and the data-layer keys it reads.

dataLayer Validator

● live

Validate a live data layer against the dataLayer Spec and flag missing or malformed keys.

Consent / CMP Checker

● live

Audit TCF v2.2, GPP, and Consent Mode v2 signals — and whether tags actually honour them.

Cookie Scanner

● live

Enumerate cookies and storage a site sets, classified by purpose and vendor.

Attribution Simulator

● live

Run last/first/linear/time-decay/position plus Markov and Shapley models on your own conversion paths.

PII Hasher

● live

Client-side SHA-256 hashing with correct per-platform normalization for emails/phones before they enter ad platforms.

GPC & DNT Signal Tester

● live

See exactly which privacy signals your browser is sending right now — and what they legally mean.

Tracking-Prevention Tester

● live

Is your blocker actually working? Test which known tracker requests your browser blocks.

Pixel & Tag Scanner

● beta

Enter a URL — get every analytics, advertising, and martech tag detected on the page, with vendor and account/property IDs.

Adobe Launch / Tags Explorer

● beta

Load any site’s Adobe Launch library, resolve all custom code, and explore rules, data elements, and extensions in full.

Tracking → CWV Impact

● beta

Estimate the Core Web Vitals cost of the tags on a page.

Every tool runs entirely in your browser — no accounts, no servers, nothing you paste leaves the page.

The paid layer these tools feed

The free tools are one-shot and manual by design. The commercial products run the same engines continuously — monitored, automated, and with evidence you can hand to a client or a regulator.