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Browser extension for Google Tag Manager
The ultimate tool for managing your Google Tag Manager container
Supercharge your Google Tag Manager workflow. Tagglo GTM Companion enhances the native GTM web interface and Google Tag Assistant with advanced tables, workspace insights, and debugging tools — all without leaving the tools you already use.
No setup
Zero config
Just install
A clearer view of your GTM setup
Easily scan tags, triggers, and variables in one more intuitive overview.
Smarter search and filtering
Find active and paused tags faster with search and built-in filters.
A better Preview Mode experience
Spot fired and paused tags more easily and search through results with less friction.
Why Tagglo GTM Companion
A better GTM experience, right where you work
Google Tag Manager is essential for marketing and analytics teams — but navigating containers with hundreds of tags, finding modified items, filtering triggers by type, or searching through variables can be slow and frustrating.
Tagglo GTM Companion solves this by injecting rich, filterable data tables, at-a-glance workspace metrics, and smart search directly into the GTM and Tag Assistant interfaces. No separate app. No context switching.
Key features
Everything you wish GTM already had
Find and manage tags faster
Browse all your tags in a powerful, sortable, and filterable data table. Global search across every tag property, 'Modified' badges that highlight unpublished changes, and a one-click toggle to hide paused tags so you can focus on what's active.
Find and manage triggers faster
An enriched data table for triggers with the same powerful filtering and search capabilities as the tag table. Quickly find triggers by name, type, or any property — even in containers with hundreds of triggers.
See your GTM setup at a glance
A visual overview is injected above the draft changes section: total tags split by active and paused, trigger counts split by custom and built-in, template usage, and unlinked tag detection. Metrics update automatically as you work.
Faster debugging in Preview Mode
Search boxes for events, tags, and variables in Tag Assistant — plus visual color coding so you instantly see which tags fired, errored, or were paused. Search suggestions appear as you type and recent searches are remembered across sessions.
Variables & smart syncing
Always in sync, never in your way
The variable list is improved with search, filtering, and an option to hide built-in variables so you can focus on your custom implementations. Under the hood, Tagglo uses the same authenticated GTM APIs the web interface relies on — fetching tags, triggers, variables, templates, folders and versions in parallel, then caching everything locally.
Data refreshes automatically when:
- You switch between containers or workspaces
- You navigate between GTM pages
- You submit changes or perform bulk actions
- You close editing sheets
Who it's for
Built for the people who live in GTM
Digital analytics engineers
Managing complex, multi-tag containers across products and brands.
Marketing operations teams
Responsible for tag governance, QA, and release hygiene.
Web developers
Implementing and debugging tracking setups for production.
Agencies
Managing GTM containers across multiple client accounts.
Power users at scale
Anyone who finds GTM's native interface limiting in large containers.
Anyone who debugs daily
Faster search, filtering, and overviews in the tools you already use.
How it works
From install to insight in under a minute
Tagglo GTM Companion runs entirely in your browser. It does not send your data to any external server.
1
Install the extension
Add Tagglo GTM Companion to your browser. Nothing to configure to get started.
2
Open GTM or Tag Assistant
Navigate to tagmanager.google.com or tagassistant.google.com. Enhanced tables and tools are injected automatically.
3
Work as you normally would
As you switch containers, navigate, or submit changes, data stays in sync automatically.
4
Experience the difference
A better GTM experience, right where you work — no separate app, no context switching.
Get started
Install it. Open GTM. Feel the difference.
Add Tagglo GTM Companion to your browser and the next time you open Google Tag Manager or Tag Assistant, the enhanced experience is already there.
Get in touch
Your feedback shapes the roadmap
We're continuously improving Tagglo GTM Companion based on user feedback. Have a feature request, bug report, or question? Head to our support page on the Chrome Web Store and let us know how we can make your GTM workflow even better.