Jonas Grønås Drange

The plugin adds one js-file which searches through your blog and adds extra HTML markup to <code>.key-shortcut</code> elements.
A stylesheet is added that applies styling to the extra HTML markup.
This results in <code>.key-shortcut</code> elements looking somewhat like keyboard buttons.

Key Shortcut Formatter

Key Shortcut Formatter enhances the presentation of keyboard shortcuts with simple CSS and JavaScript

Kaspars

Uses a customized version of the <a href="https://github.com/kasparsd/code-prettify-lib/pull/1" rel="nofollow ugc">Code Prettify library</a> to support local styles and scripts. Plugin applies code highlighting automatically to all <code><pre></code> tags on the page.
Compatible with Gutenberg and doesn’t lock you in with specific markup requirements.
<h4>Development</h4>
Plugin development <a href="https://github.com/kasparsd/code-prettify" rel="nofollow ugc">on GitHub</a>.
<h4>Credits</h4>
Created and maintained by <a href="https://kaspars.net" rel="nofollow ugc">Kaspars Dambis</a>. All of my open source work is available <a href="https://github.com/kasparsd" rel="nofollow ugc">on GitHub</a>.
Use Contact Form 7? <a href="http://preseto.com/go/cf7-storage" rel="nofollow ugc">Storage for Contact Form 7</a> is my commercial plugin (GPL license) for storing all form submissions in your WordPress database.
Cover photo by <a href="https://www.flickr.com/photos/110751683@N02/13334080323/" rel="nofollow ugc">Yuri Samoilov</a>

Code Prettify

I tried to use this plugin in WP 5.0.2 and it works. I got an issue with Litespeed cache configuration and seems we should exclude this plugin javascript from an optimization process. Then you will be fine!

It works as expected!

Perfect. Automatic.

Finally a plugin that works with the outdated "Crayon Syntax Highlighter" plugin

So I don't have to mess around with every post.

Good replacement

Your plugin makes me very secure and happy to use because it doesn't make me dependent, I can disable it without affecting the articles. Good job.

I just hope you can keep the plugin up to date to be compatible with new versions of WordPress.

Thank you!

Please keep update to compatible with WordPress version

100% automatic code highlighting using the Prettify library. No shortcodes, no classnames, fully automatic and pure awesome.

Key Shortcut Formatter vs Code Prettify