GTM Scanner icon

GTM Scanner

by Taishi Akiyama · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Analyzes GTM containers loaded on the current website and reports tags, triggers, and variables.

Users
80
+11 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#92K
#76K among extensions
Version
1.0.7
updated 4 Mar 2026

Users

monthly, 8 months
04080Mar 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 80 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months
001Mar 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About GTM Scanner

GTM Scanner detects and analyzes Google Tag Manager (GTM) containers loaded on the current webpage and reports tags, triggers, and variables in a clear, readable format. 【Who it's for】 • Marketers and developers who need to audit GTM implementation on their or clients' sites • Anyone who wants a quick overview of tag types and firing conditions • Teams documenting or auditing GTM setup 【Features】 • Auto-detects GTM containers on the page • Shows tag counts and breakdown (GA4, UA, Ads, Custom HTML, etc.) • Displays trigger types, conditions, and associated tags • Lists variables (built-in and custom) • Indicates container size and impact on page speed • Export scan results as JSON After installation, click the extension icon on any webpage and tap "Scan this page" to see a summary of the GTM setup in use. Ideal for tag management audits, handovers, and documentation.

Growth

WindowUsersChangeRatingsRating
7 days+3+3.9%00.00
30 days+11+15.9%00.00
6 months+52+185.7%00.00

Version history

1 versions recorded
1.0.74 Mar 2026

Details

Category
Developer Tools
First seen
4 Mar 2026
Size
26 KB
Languages
en, ja
Pricing
Free
Privacy policy
blogs.itmedia.co.jp
Support
blogs.itmedia.co.jp
Extension ID
jfcmhipjmmgnajdfkmnegiieanlnpmhj

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
activeTabscripting
Site access
https://www.googletagmanager.com/*http://www.googletagmanager.com/*<all_urls>
Can read and change data on every website you visit.

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