dataslayer

Name: dataslayer
Rating: 4.578313253012048 (83 reviews)
Author: https://dataslayer.org

Debug and test tag management (Google Tag Manager, DTM, Tealium) and analytics implementations.

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Dataslayer is a Chrome extension that integrates seamlessly into Chrome Developer Tools to monitor and debug tag management data layers. It supports popular tag management systems such as Google Tag Manager, Adobe Launch, Adobe DTM, Tealium, TagCommander, and custom JavaScript data layers.

With Dataslayer, users can easily view changes in multiple data layers, including those within embedded iframes. It also decodes analytics tags from Google Analytics (all versions including Universal Analytics and App + Web), Adobe Analytics, and Floodlight, making it an essential tool for web analysts and developers to test and verify their tagging implementations efficiently.

Extension Developer Tools Analytics Productivity

By:

https://dataslayer.org

Users:

70,000

Rating:

4.58

(83)

Version:

2.0.0 Last updated: 2025-06-09

Creation date:

2019-06-05

Risk:

Permissions:

storage
notifications
webNavigation
scripting

Host permissions:

http://*/*
https://*/*

Size:

420.00KB

Email:

in*****@dataslayer.org

URLs:

Website

Full description:

Source:

Chrome Web Store

Data ingested on:

2025-07-16

Ranking

# 2,712 ▼ 2

Other rankings

#618 in Developer Tools

#7 in data keyword 53 ▼ 1

#16 in web analytics keyword 49 ▼ 3

#45 in developer tools keyword 60 ▼ 3

#88 in analytics keyword 64 ▼ 7

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Other platforms

dataslayer (v1.3.7)

2,440 5.00

(7)

User reviews

Dataslayer is highly valued by users as a helpful and indispensable Chrome extension for debugging data layers, GA, and GTM configurations with an accessible interface and solid accuracy. It is recommended frequently. However, users also report issues such as an awkward interface, occasional inaccuracies or discrepancies in event reporting, and reliability problems like the extension disappearing or not working on local sites. Some bugs can prevent tag firing. Overall, its benefits outweigh its flaws for many analytics professionals.

Pros

Dataslayer is praised for being a very useful and indispensable tool for debugging data layers, Google Analytics (GA), and Google Tag Manager (GTM) configurations.
It has an easy to use interface that allows quick confirmation and visualization of events and data layers without relying solely on the console.
It is considered more accurate or at least helpful compared to GTM Preview and Debug mode, making debugging easier and faster.
Supports working with different tag management systems like Tealium and provides access to data elements.
Users recommend it to colleagues and clients, indicating strong satisfaction and reliability.

Cons

The interface is sometimes described as awkward, cluttered, or unreadable, making it hard to work with the presented data effectively.
Dataslayer sometimes shows discrepancies or inaccurate results compared to other tools like Google Tag Assistant or GTM-debugger, leading to confusion and mistrust.
There are reports of the extension suddenly disappearing from the developer toolbar or stopping to work properly, particularly on local development sites or with certain analytics tags like Adobe Launch.
A noted bug is that it might interfere with tag firing, causing analytics tags not to fire in some scenarios.
There are occasional feature gaps, such as lack of support currently for App+Web Analytics, which users hope will be addressed.

Recent reviews

dataslayer is back! God Bless thank you for working on this guys

Ar*****, 2025-06-23

верните расширение!

Ol*****, 2025-06-16

So glad dataslayer is back! Best tool out there for debugging the data layer

Ar*****, 2025-06-09

View all user reviews ›

Extension safety

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

dataslayer requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension.

dataslayer has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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