Groundworx

Groundworx GTM is a lightweight plugin that cleanly adds Google Tag Manager (GTM) to your WordPress site.
It uses core WordPress hooks like <code>wp_head</code> and <code>wp_body_open</code>, ensuring compatibility and avoiding messy theme edits.
Features: 
* Injects GTM scripts in the proper locations (<code><head></code> and after <code><body></code>) 
* Option to disable tracking for logged-in users, by user role 
* No ads, no tracking — just works
<h3>License</h3>
GPLv2 or later

Groundworx GTM – Simple Insert for Google Tag Manager

Cleanly inject Google Tag Manager (GTM) into your site using WordPress-native hooks. No tracking for selected user roles.

Breezy Team

Simple to use web features for building and maintaining website a breeze. e.g. 404, GTM, Google Maps, OneMap and more…
Visit <a href="https://www.breezyplugins.com/" rel="nofollow ugc">https://www.breezyplugins.com/</a> for more information.
Using <a href="https://www.breezyplugins.com/wordpress/gtm-google-tag-manager/" rel="nofollow ugc">Breezy GTM</a>:
<ul>
<li>Enable Google Tag Manager (GTM) on your website. </li>
<li>Make use of GTM to manage website tagging, such as Google Analytics Tracking. </li>
</ul>
Using Breezy Map:
<ul>
<li><a href="https://www.breezyplugins.com/wordpress/onemap/" rel="nofollow ugc">Generate Singapore maps easily using OneMap</a> API. </li>
<li><a href="https://www.breezyplugins.com/wordpress/google-maps/" rel="nofollow ugc">Generate world maps easily using Google Maps</a> API. </li>
<li>Search locations easily using OneMap and Google Maps API. </li>
</ul>
Using <a href="https://www.breezyplugins.com/wordpress/faster-404-page-not-found/" rel="nofollow ugc">Breezy 404</a>:
<ul>
<li>Generate lightweight custom 404 error page easily using Breezy 404.</li>
</ul>
Using <a href="https://www.breezyplugins.com/wordpress/maintenance/" rel="nofollow ugc">Breezy Maintenance</a>:
<ul>
<li>Enables creation of notification message for maintenance purposes. </li>
</ul>
Using <a href="https://www.breezyplugins.com/wordpress/back-to-top/" rel="nofollow ugc">Breezy Back to Top</a>:
<ul>
<li>Enables creation of back to top function for users to scroll to top quickly. </li>
</ul>
Using <a href="https://www.breezyplugins.com/wordpress/website-build-helper/" rel="nofollow ugc">Breezy Helper</a>:
<ul>
<li>Enables more features to help with breezier WordPress website build, operation, and maintenance.</li>
</ul>
<h3>Dependencies</h3>
<ul>
<li>
Breezy Map integrates with the OneMap service to provide map-related functionalities.
</li>
<li>
The OneMap Location API is used to find a location during map creation:
<code>https://www.onemap.gov.sg/api/common/elastic/search?searchVal=[KEYWORD]&returnGeom=Y&getAddrDetails=Y&pageNum=1</code>
</li>
<li>
The following OneMap Leaflet script and style are used in loading of maps: 
 <code>https://www.onemap.gov.sg/web-assets/libs/leaflet/leaflet.css 
https://www.onemap.gov.sg/web-assets/libs/leaflet/onemap-leaflet.js</code>
</li>
<li>
Important: The following OneMap attribution must remain in the code and visible in the plugin output:
<code>/** DO NOT REMOVE the OneMap attribution below **/ 
attribution: '<img src="https://www.onemap.gov.sg/web-assets/images/logo/om_logo.png" style="height:20px;width:20px;"/>&nbsp;<a href="https://www.onemap.gov.sg/" target="_blank" rel="noopener noreferrer">OneMap</a>&nbsp;&copy;&nbsp;contributors&nbsp;&#124;&nbsp;<a href="https://www.sla.gov.sg/" target="_blank" rel="noopener noreferrer">Singapore Land Authority</a>'</code>
</li>
</ul>

Breezy

Simple to use web features for building and maintaining website a breeze. e.g. 404, GTM, Google Maps, OneMap, Back to Top, Maintenance and more…

Groundworx GTM – Simple Insert for Google Tag Manager vs Breezy