suppress

Add the Table of Contents Block anywhere in your Gutenberg editor. It scans H2–H6 headings in the post content and builds a nested, clickable table of contents. Links automatically work by adding IDs to headings.
No configuration needed. Works on single posts and pages (not archives or category listings).
<ul>
<li>No theme editing required 
You can activate the plugin on any site.</li>
<li>Compatible with Gutenberg / Classic Editor 
It processes the final rendered HTML.</li>
<li>SEO-friendly 
IDs are based on sanitize_title(), the same function WP uses for slugs.</li>
<li>Works with headings that already have IDs 
It does not overwrite existing IDs.</li>
</ul>
Example: 
– Structure Your Content – Write your post or page using semantic headings (H2, H3, etc.)—just like you normally would. 
– Insert the Table of Contents Block – Add the “Table of Contents Block” anywhere in your editor (e.g., right after the introduction). 
– Let It Work Automatically – The plugin scans your headings, builds a hierarchical, scroll-linked table of contents in real time, and updates dynamically as you edit.
<h3>Key Features</h3>
<ul>
<li>Server-side generated Table of Contents</li>
<li>Automatically detects H2–H6 headings</li>
<li>Generates nested lists based on heading hierarchy</li>
<li>Automatically adds IDs to headings when missing</li>
<li>Lightweight and simple</li>
<li>Useful for:
<ul>
<li>Adding a Table of Contents to a post or page</li>
<li>Generating heading IDs</li>
<li>Linking to sections within content</li>
</ul>
</li>
</ul>
<h3>Why use this plugin?</h3>
<ul>
<li>Smart Parsing: Supports H2 through H6 headings</li>
<li>Clean Output: Uses standard HTML lists for maximum theme compatibility</li>
<li>Non-intrusive: Does not modify existing heading IDs</li>
<li>Lightweight & Fast</li>
</ul>

Supplyist TOC Block

A simple Gutenberg block that automatically generates a nested table of contents from post headings.

ayushag96

Make nice and noticable boxes like info box, alert box, success box, warning box etc. in your posts using shortcodes. These boxes are very easy to add and very attractive.
Special Features:
<ul>
<li>Close button for the Notice Boxes which can close the box on click</li>
<li>Easily make text in the box center aligned.</li>
<li>Various kinds of boxes for different messages</li>
<li>Add notice boxes using shortcodes (very easy)</li>
<li>A special page on your wordpress dashboard with all the help and reference material you need</li>
</ul>
For more information see Screenshots and FAQ!

Notice Boxes with Shortcodes

This plugin allows you to make notice boxes (styled content boxes of different colors) to display different messages via shortcodes.

Supplyist TOC Block vs Notice Boxes with Shortcodes