Add a Table of Contents block to your posts and pages. The TOC is a nested list of links to all heading found in the post or page. To use it, simply add a block and search for “SimpleTOC” or just “TOC”.

The maximum depth of the toc can be configured in in the blocks’ sidebar among many other options. There can hide the headline “Table of Contents” and add your own by using a normal heading block.

Spin up a new WordPress instance with the SimpleTOC plugin already installed.

User Feedback

“It is lightweight, stable, and fully compatible with WordPress Full Site Editing. A reliable solution that integrates seamlessly and performs exactly as expected.”
— @js100 on wordpress.org

“Does the job perfectly, and adds no bloat.”
— @clicknathan on wordpress.org

“Simple yet powerful. Great plugin that does exactly what you need.”
— @mixey on wordpress.org

Accessibility

This plugin is designed & developed for WCAG 2.2 level AA conformance. The plugin is tested with assistive technology and intended to be accessible, however some third party plugins or themes may affect the individual accessibility on a given website. If you find an accessibility issue, please let us know and we’ll try to address it promptly.
Hidden TOCs use native <details> and <summary> semantics without extra ARIA references that require custom IDs.

Features

Designed for Gutenberg.
Zero configuration: Add the SimpleTOC block to your post and that’s it.
Minimal and valid HTML output.
Utilizes the browser’s built-in details tag for a collapsible interface.
No JavaScript or CSS by default. Optional features such as the accordion menu, smooth scrolling, or box style add minimal assets only when enabled.
Optional Box style in Gutenberg’s Styles tab with a default gray background.
Native text, link, background, spacing, and typography controls.
Global block styling through theme.json.
Inherits the style of your theme.
Smooth scrolling effect using CSS.
Accessibility built-in by following web standards.
Standard Gutenberg block wrapper with navigation role and ARIA label attributes.
Translated in multiple languages. Including German, Japanese, Chinese (Taiwan), Dutch, Brazilian Portuguese, French, Spanish and Latvia.
Ideal for creating a Frequently Asked Questions section on your website.

Customization

Administrators can utilize global settings to supersede the individual block settings.
Set text, link, and background colors in Gutenberg’s Styles tab.
Native block support for wide and full width.
Set vertical margins and padding with native spacing controls.
Control the maximum depth of the headings.
Choose between an ordered, bullet HTML list. Or indent the list.
Select the Box style directly in Gutenberg’s Styles tab.
Select a heading level or turn it into a paragraph.
Disable the h2 heading of the TOC block and add your own.

Highlight the current section

Enable “Highlight current section” under Advanced Features in the SimpleTOC block settings. The link for the current section is underlined as visitors scroll. This option is off by default. To enable it for all blocks, turn on “Force highlight current section” under Settings > SimpleTOC. The global setting takes precedence over individual block settings. Developers can override the global setting with the simpletoc_scroll_spy_enabled filter.

This feature uses native CSS scroll-target-group and :target-current. Browser support is limited. Browsers without support keep the normal table of contents and working links. No JavaScript fallback or polyfill is included. Highlighting applies to headings on the current page and does not make the table of contents sticky.

Compatibility

GeneratePress and Rank Math support.
Works with popular AMP plugins.

How to contribute

SimpleTOC is open-source and developed on GitHub Pages. If you find a bug or have an idea for a feature please feel free to contribute and create a pull request.

Credits

Many thanks to Tom J Nowell and and Sally CJ who both helped me a lot with my questions over at wordpress.stackexchange.com

And many more thanks to all the developers on GitHub who helped me making SimpleTOC what it is today!

Thanks to Quintus Valerius Soranus for inventing the Table of Contents around 100 BC.

SimpleTOC – Table of Contents Block