suppress

<p>Add the <strong>Table of Contents Block</strong> 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.</p>
<p>No configuration needed. Works on single posts and pages (not archives or category listings).</p>
<ul>
<li>No theme editing required<br />
You can activate the plugin on any site.</li>
<li>Compatible with Gutenberg / Classic Editor<br />
It processes the final rendered HTML.</li>
<li>SEO-friendly<br />
IDs are based on sanitize_title(), the same function WP uses for slugs.</li>
<li>Works with headings that already have IDs<br />
It does not overwrite existing IDs.</li>
</ul>
<p><strong>Example:</strong><br />
– Structure Your Content – Write your post or page using semantic headings (H2, H3, etc.)—just like you normally would.<br />
– Insert the Table of Contents Block – Add the “Table of Contents Block” anywhere in your editor (e.g., right after the introduction).<br />
– 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.</p>
<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.

Jamie Dąbrowiecki

<p>Headingo is a lightweight utility plugin that allows administrators to control which heading levels are available in the editor toolbar. This tool only works for websites using the Classic Editor.</p>
<p>These settings are applied to all users with editing permissions.</p>
<p>The configurable heading levels are:</p>
<ul>
<li>Heading 1</li>
<li>Heading 2</li>
<li>Heading 3</li>
<li>Heading 4</li>
<li>Heading 5</li>
<li>Heading 6</li>
<li>Preformatted</li>
</ul>
<p>This is especially useful for removing the Heading 1 (H1) option to prevent editors from mistakenly selecting it, as well as removing heading levels which are not required on your website.</p>
<p>This plugin is intended for websites that rely on the Classic Editor editing experience. It does not attempt to modify the Block Editor (Gutenberg), where heading availability is governed by editor and theme configuration (theme.json) by design. The Classic Editor plugin is required for this plugin to work (or a theme that allows you to switch to the Classic Editor without the plugin).</p>
<h3>Classic Editor</h3>
<p>The Classic Editor (TinyMCE) is fully supported. Selected heading levels and Preformatted can be hidden from the formatting dropdown while remaining available via keyboard shortcuts or pasted HTML. The Paragraph option is always available and cannot be toggled.</p>
<h3>Block Editor (Gutenberg)</h3>
<p>This plugin does not control heading levels in the Block Editor. Gutenberg does not currently provide a reliable API for plugins to override available heading levels, as these are controlled by editor and theme settings.</p>


Headingo

Choose which heading levels are visible in the Classic Editor toolbar.

Supplyist TOC Block vs Headingo