Overview
Monitor, search, filter GTM dataLayer events in real-time
Monitor Google Tag Manager dataLayer events in real-time. Essential for analytics developers, QA engineers, and GTM implementers. DataLayer Lens is a powerful debugging tool for anyone working with Google Tag Manager and dataLayer implementations. Monitor, inspect, and validate your dataLayer pushes in real-time as you interact with any website. Key Features • Real-time event monitoring. Watch dataLayer events appear instantly as they're pushed, with clear visual indicators for new activity. • Multiple viewing modes. Choose between an on-page overlay, a persistent side panel, or integration with Chrome DevTools to suit your workflow. • Smart event categorisation. Events are automatically colour-coded by type (page views, clicks, e-commerce transactions, form submissions, and more) for quick, visual scanning. • Flexible filtering. Include or exclude specific event types to focus on what matters. Filter out noisy GTM lifecycle events or isolate specific interactions. • Event grouping. Group related events by time window or trigger events to understand the sequence of dataLayer activity. • Event persistence. Optionally retain events across page refreshes, ideal for testing multi-step funnels and form submissions. • Multiple dataLayer support. Monitor custom dataLayer array names alongside the standard dataLayer. • Data export. Export captured events as JSON for documentation, debugging, or sharing with colleagues. • Per-domain configuration. Save different settings for different websites. Who is this for? • Google Tag Manager developers validating implementations • Analytics engineers debugging tracking issues • QA teams verifying analytics requirements • Digital marketers auditing tag firing behaviour • Developers integrating analytics into web applications Privacy DataLayer Lens operates entirely within your browser. No data is collected, transmitted, or stored externally. All captured events remain local to your machine.
Details
- Version3.3.3
- Updated9 February 2026
- Size200KiB
- LanguagesEnglish (United Kingdom)
- Developer
Email
simonsavestheday@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions or problems, visit the developer's support site
