teamstaccato

Shed Editor Assist enhances the Gutenberg block editor experience with visual aids that make layout structure clearer.
Features:
<ul>
<li>Layout Borders — dashed outlines on Columns, Column, Group, and Spacer blocks so you can see structure at a glance</li>
<li>Block Color Coding — each block type gets a distinct border color (paragraph, heading, image, list, buttons)</li>
<li>Grab Markers — a ⠿ handle at the top-left corner of each block for quick drag-and-drop reordering</li>
<li>Backspace / Delete Protection — prevents accidental block deletion or column-merge when the cursor is at the start or end of a block (both keys protected)</li>
</ul>
All features are editor-only. Nothing is added to the frontend.
Each feature can be toggled independently under Settings > Shed Editor Assist. Border style (dashed / solid), width, and base color are also configurable.
Optional paid add-ons are available at https://wpshed.jp.

Shed Editor Assist

Gutenberg block editor visual aids: layout borders, block color coding, grab markers, and Backspace/Delete key protection.

helpful.dev

This plugin adds flexible Bootstrap 4 blocks to the WordPress editor for creating custom page layouts with the Bootstrap grid.
Are you using Advanced Bootstrap Blocks? <a href="https://wordpress.org/plugins/advanced-bootstrap-blocks/#reviews">Write a review</a>!
<h3>Blocks</h3>
Advanced Bootstrap Blocks adds the following Bootstrap 4 blocks to the WordPress editor:
<ul>
<li>Container (fixed-width or fluid, with background image settings)</li>
<li>Row</li>
<li>Column</li>
<li>Button and Button Group</li>
<li>Card with Header, Body, Footer</li>
<li>Jumbotron</li>
</ul>
<h3>Block Templates</h3>
Do you need to create standard block layouts for WordPress pages and posts? The WordPress editor lets you define custom block templates inside your theme.
The example below may get you started. Visit the <a href="https://developer.wordpress.org/block-editor/developers/block-api/block-templates/" rel="nofollow ugc">WordpPress Block Editor Handbook</a> to learn more about supercharging your WordPress themes with blocks templates.
<pre><code><?php
if(in_array('advanced-bootstrap-blocks/advanced-bootstrap-blocks.php', apply_filters('active_plugins', get_option('active_plugins')))){ 
 // do stuff only if the Advanced Bootstrap Blocks plugin is active 
 add_action( 'init', 'advancedbootstrapblocks_register_page_template' );
 function advancedbootstrapblocks_register_page_template() {
 $post_type_object = get_post_type_object( 'page' );
 $isFluid = get_theme_mod( 'understrap_container_type' ) === 'container-fluid'; 
 $post_type_object->template = [
 [ 'advanced-bootstrap-blocks/container', 
 ['className'=>'py-5', 'isWrapped' => $isFluid, 'isFluid' => false ], 
 [
 [ 'advanced-bootstrap-blocks/row', 
 [],
 [
 [ 'advanced-bootstrap-blocks/column', 
 ['className'=>'col-md-8 offset-md-2 text-center'], 
 [
 ['core/heading', 
 [ 'className' => 'display-4', 'level' => 1, 'placeholder' => 'Hello, World!', ], 
 []
 ],
 [ 'core/paragraph', 
 ['className' => 'lead', 'placeholder' => 'Lorem ipsum dolor sit amet.', ], 
 []
 ],
 ]
 ]
 ]
 ]
 ]
 ],
 ];
 }
}
</code></pre>

Advanced Bootstrap Blocks

... and that's not saying much because the others were broken or terrible. Even still, this one is on the right track, and I'm happy to see that at least somebody is getting it right. Thanks for your hard work!

So far the best bootstrap block plugin

This is really well done, it does lack some features to become perfect, and has some issues with the editor (columns chaos if multiple classes are set) but it works perfectly. By far the fastest way to get Bootstrap into Gutenberg : THUMBS UP

Very usable !

Build responsive Bootstrap 4 layouts inside the Gutenberg editor.

Shed Editor Assist vs Advanced Bootstrap Blocks