Simple Data Layer Viewer by datapip

View and monitor data layers like dataLayer, digitalData, and utag.data. Use a popup or DevTools panel with live updates. Fully local, customizable, and built to support your daily debugging workflow. No hidden tracking or data collection.

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About this extension

The Simple Data Layer Viewer is a lightweight, no-nonsense extension for inspecting data layers on any website.

🔍 Features:
- Instantly view detected data layers via a popup or a dedicated Developer Tools panel
- Live updates: the DevTools panel refreshes automatically as the data layer changes
- Supports common data layer formats out of the box (dataLayer, digitalData, utag.data, etc.)
- Fully customizable: define your own data layer names and tweak appearance settings
- Easily inject JavaScript code to any website for testing and debugging purposes
- Rewrite or block requests, e.g. to load development containers or block testing requests

🚫 No tracking. No data collection. No external communication.
This extension is purely local and transparent—it simply displays data layers.

Whether you're debugging, analyzing, or just exploring, this tool is designed to support your daily work—just like it does mine.

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Release notes for 3.2.0

New features:

Inject JavaScript code, e.g. to activate debugging mode or initialize a custom data layer
Rewrite or block requests, e.g. to load development environments or block domains for testing

Required permissions: