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The KaTeX WordPress plugin integrates the super-fast <a href="https://github.com/Khan/KaTeX" rel="nofollow ugc">KaTeX math typesetting engine</a> with your WordPress website. The plugin allows you to put LaTeX in a <code>[latex]...[/latex]</code> shortcode, and beautiful math appears on your post or page.
The plugin also has an option to use the excellent <a href="http://www.jsdelivr.com" rel="nofollow ugc">jsDelivr CDN</a> to load the KaTeX scripts, further increasing the performance of the plugin.
Equations in <code>[latex display="true"]...[/latex]</code> will be rendered in display mode (rather than inline mode) and centered on its own line.
<a href="https://andrewsun.com/projects/wp-katex/" rel="nofollow ugc">Plugin Website</a>

WP-KaTeX

Integrates the super-fast KaTeX LaTeX equation typesetting engine with WordPress. Create beautiful, yet performant math in your posts and pages.

Tom Churchman

The KaTeX WordPress plugin enables you to use the fastest <a href="https://github.com/Khan/KaTeX" rel="nofollow ugc">TeX math typesetting engine</a> on your WordPress website. You can include TeX inside a <code>[katex]...[/katex]</code> shortcode or in a Gutenberg block. Either way the math will render beautifully on your website. When using Gutenberg blocks, the equations will render immediately inside your editor!
Equations in blocks or using the <code>[katex display=true]...[/katex]</code> shortcode will render on page in display mode–with bigger symbols–centered on their own line.
For compatibility with other LaTeX plugins, this plugin optionally supports <code>[latex]...[/latex]</code> shortcodes.
<a href="https://wordpress.org/plugins/katex" rel="ugc">Plugin Website</a>
<h3>Assets</h3>
This plugin includes minified assets provided by the KaTeX project. 
The source code is available in <a href="https://github.com/KaTeX/KaTeX/tree/v0.16.22" rel="nofollow ugc">the KaTeX git repository on GitHub</a>.

KaTeX

Kudos to the author of this plugin for their incredible support!

Excellent support

I am writing a lot of equations these days and I am in love with this plugin.

Excellent plugin

Use the fastest math typesetting library on your website.

WP-KaTeX vs KaTeX