Automate your Google Marketing stack audits. Document GA4™, GTM™, and Looker Studio™ configurations directly into Google Sheets™ in seconds.
Listing updated:October 25, 2025
Works with:
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Overview
Stop wasting days on manual documentation. Addocu is a powerful, free, and open-source Google Sheets™ Add-on designed for digital marketers, analysts, and agencies who need a clear and reliable way to audit their Google ecosystem.

WHAT IT DOES: Addocu connects to the official Google APIs to pull detailed configuration metadata from your accounts and organizes it into clean, comprehensive reports within your active spreadsheet.

CORE FEATURES (100% FREE):

Full GA4™ Audit: Get a complete inventory of your Google Analytics 4™ properties, including Custom Dimensions, Custom Metrics, Data Streams, and core settings.

GTM™ Inventory: Sync all tags, triggers, and variables from your Google Tag Manager™ containers to easily spot inconsistencies, unused assets, or configuration errors.

Looker Studio™ Report Listing: List all your reports, their owners, data sources, and last modified dates to keep your reporting environment clean and organized.

Interactive Dashboard: A visual summary of all your assets to help you understand your setup at a glance.

WHY USE ADDOCU?

Save Hours of Tedious Work: What used to be a multi-day manual process now takes just a few clicks.

Secure and Transparent: Your data never leaves your Google account. The Add-on is fully open source, and your API key is stored securely in your private user properties.

Built for Professionals: Designed by an analyst who understands the real-world challenges of managing complex marketing stacks.

GETTING STARTED:

Install the Add-on.

Open the configuration sidebar from Extensions > Addocu > Configure.

Provide your own Google Cloud API Key (billing must be enabled on your project, but the Add-on's usage falls within the free tier).

Run your first audit from the menu!

Google Sheets™, Google Analytics™, Google Tag Manager™, and Looker Studio™ are trademarks of Google LLC.
Additional information
PricingFree of charge
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Addocu will ask for the permissions shown below. Learn more
Addocu will need access to your Google account
This will allow Addocu to :
View and manage spreadsheets that this application has been installed in
Connect to an external service
View and manage data associated with the application
Display and run third-party web content in prompts and sidebars inside Google applications
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
See and download your Google Analytics data
Read, edit, and permanently delete your Looker Studio assets
View your Google Tag Manager container and its subcomponents
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