CrispyCohd

CrispyCohd Advanced Accordion Block provides a flexible, block-based accordion for the WordPress editor.
Built to align with WCAG 2.2 and WAI-ARIA Authoring Practices for accordions.
The accordion is built using normal blocks:
<ul>
<li>Header area: add any blocks you want</li>
<li>Content area: add any blocks you want</li>
<li>Optional divider between the two</li>
</ul>
The block supports two animation styles, slide and fade. 
It also supports a built-in caret, a custom SVG, or a custom image for the toggle icon.
Accessibility is a core focus of the block. The front-end output includes a dedicated toggle button, keyboard navigation, ARIA relationships, and reduced motion support.

CrispyCohd Advanced Accordion Block

A flexible accordion block that lets you build headers and content using any core or custom blocks.

Michael Burridge

FAQ Concertina is a plugin for WordPress that enables you to easily display a list of FAQs (Frequently Asked Questions) on your page or blog post in an attractive and presentable fashion.
This is achieved by using the following simple shortcode in your WordPress page or blog post:
<pre><code>[faq-concertina]
</code></pre>
When the list of FAQs appears on your page the answers are initially hidden with only the questions visible. This makes efficient use of the space available on the page and avoids large tracts of text which can be difficult for the reader to take in, especially on small screen devices such as smartphones.
The answer can be made to appear as an expandable section, concertina-style, by clicking on the question. The answer can be hidden again by clicking anywhere on either the question or answer.
With FAQ Concertina you can:
<ul>
<li>have any number of FAQs,</li>
<li>define the order in which the FAQs appear on the page,</li>
<li>determine whether or not more than one answer can be visible at any one time,</li>
<li>categorise FAQs so that FAQs from different categories can appear in separate lists, either on the same page or on separate pages,</li>
<li>customise the appearance of the FAQ listing to fit in with the style of your theme.</li>
</ul>
Although primarily intended for FAQs FAQ Concertina is, of course, not limited to just FAQs and can be used for any content with a heading where the content is initially hidden and can be expanded by clicking on the heading. Feel free to use your imagination to come up with all kinds of creative uses for FAQ Concertina!
<h4>WHAT’S NEW?</h4>
<ul>
<li>As of version 1.4.8 FAQs can now display a featured image (also known as post thumbnail)</li>
<li>As of version 1.4.6 FAQs support post revisions.</li>
<li>As of version 1.4.0 FAQ Concertina is WAI-ARIA compliant. This means that FAQ Concertina is fully accessible and compatible with screen readers and other assistive technologies. Thanks to Tim Kaye <a href="https://profiles.wordpress.org/kts915" rel="nofollow ugc">@kts915</a> for contributing JavaScript code to make this possible.</li>
</ul>
The FAQ Concertina download includes a fully illustrated 20 page manual in <code>.pdf</code> format to help you get the most from the plugin. The manual can also be downloaded from the website:
<a href="http://www.zyriab.co.uk/faqconc/" rel="nofollow ugc">http://www.zyriab.co.uk/faqconc/</a>
<a href="http://twitter.com/michaelburridge" rel="nofollow ugc">http://twitter.com/michaelburridge</a>

FAQ Concertina

Display FAQs in an expandable concertina or accordion section. FAQs can be ordered and categorised, and their appearance can be customised.

CrispyCohd Advanced Accordion Block vs FAQ Concertina