Preview GTM dataLayer, debug with GTM inject, and fix Shopify Custom Pixel preview issues.
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LeoMeasure DataLayer Checker is a powerful Chrome Extension for GTM dataLayer preview real time. It helps you preview and debug dataLayer events and data without relying on GTM’s built-in preview mode or the browser console for Shopify Custom Pixel.
Key Features:
DataLayer Checker: Easily preview and debug the dataLayer on any website — even when GTM's native preview mode is not available.
Copy DataLayer Path: Instantly copy the path of any object inside the dataLayer to create GTM variables quickly and accurately in Google Tag Manager.
DataLayer Checker for Shopify Custom Pixel: Shopify Custom Pixel events don’t appear in GTM preview mode by default. This extension lets you view those dataLayer events directly, without opening the browser console.
Simulate GTM Preview for Shopify: Enable GTM-like preview behavior for Shopify Custom Pixel integrations with a single toggle.
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Super Great!
As a web analyst working across diverse platforms, including Shopify, LeoMeasure has become an essential part of my daily toolkit. This Chrome extension makes inspecting and previewing the website data layer effortless, saving hours of troubleshooting and giving a crystal-clear view into GTM setups. What sets LeoMeasure apart is its seamless compatibility with Shopify, where data layer inspection is often tricky. It simplifies debugging and helps ensure that tracking implementations are firing correctly, which is crucial for conversion optimization and analytics integrity. A big thank you to the LeoMeasure team for developing such a reliable and intuitive solution. This extension genuinely elevates the workflow for analysts, developers, and marketers alike. Highly recommended for anyone serious about accurate data collection and efficient tag management.
This is really amazing, Extension
I’ve tested dozens of extensions over the years—some good, some just hype. But LeoMeasure genuinely stands out. From debugging missing purchase events to copying nested dataLayer objects in one click, it covers what every GTM professional secretly wished for. No more guessing, no more switching tabs endlessly. Just clean, fast, real-time visibility. This isn’t just a helper tool. It’s a tracking companion. Hats off to the creator—this is what modern tracking needed.
Best datalayer checker for GTM
Extremely helpful extension
This extension is a combination of all features that a tracking specialist needs to debug, check datalayer, inject GTM and so on. I previously used 'Datalayer checker' but it had issue after the latest update. So, when I test this extension I become a fan and removed other similar extensions. It shows datalayer event just like GTM preview and also I can easily copy datalayer values. It's a must have tool for any web analyst or tracking specialist.
After the Shopify Checkout Extensibility update, tracking became a major headache — and many clients are still confused. But once I discovered LeoMeasure – DataLayer Checker & GTM Inspector, everything changed. It was truly surprising how smoothly it worked — no more extra explanations needed. Huge thanks to @Hasan Bhai for this innovative, time-saving solution. You've made life a lot easier for us in the tracking community!
LeoMeasure sets a new standard for GTM and DataLayer debugging. It offers real-time visibility into tags, events, and dataLayer pushes with unmatched precision. Whether you're auditing eCommerce tracking or troubleshooting complex setups, LeoMeasure delivers clarity, speed, and control — all in one sleek interface. A must-have for any serious digital marketer or analytics professional.
All in one extension for the tracking community. Thanks a lot for such an amazing tool.