Tag Inspector — Meta Pixel, LinkedIn & GA4 Tag Detector

Audit any page's tracking setup: detect Meta Pixel, GA4, GTM and 10+ platforms, stream live events, check consent, export reports.

Tag Inspector shows which tracking tags are running on a page, and whether they are set up correctly. Open the side panel on any site and you see the tags it found, the IDs they use, and the events they fire as you click. When something looks off, like a tag loading twice or a purchase event with no transaction ID, it explains the problem and suggests a fix. It covers the common analytics, advertising and consent tools, and detects them three ways at once: from the page HTML, the network requests they send, and the JavaScript they leave behind. Tags that load late still get caught. Six tabs: an overview with a health score, a live feed of events firing, the consent state, the data layer, the health warnings, and a printable report you can share or export. Everything runs on your device. No account, no sign-up, nothing sent to a server. The full privacy policy is linked from this listing. Tag Inspector is free. Built by NUVIX.