Andrew Parman

This plugin adds a Gutenberg block called <code>IECST Highlighter</code>. After entering a code snippet in the editor, 
the output will be rendered with a syntax highlighting style selected in the IECST Highlighter Settings.
This plugin uses the <a href="https://github.com/PhioAutomation/phio-highlighter" rel="nofollow ugc">Phio Highlighter</a> which is distributed 
with an MIT License, https://highlighter.phioautomation.com/LICENSE.txt.
Development of this plugin is on <a href="https://github.com/PhioAutomation/phio-highlighter" rel="nofollow ugc">Github</a>.

IECST Highlighter

Display beautiful code snippets using the Phio Highlighter for the IEC 61131-3 Structured Text language

agmorpheus

Syntax Highlighter ComPress is a simple WordPress plugin, that is based on the latest <a href="http://alexgorbatchev.com/wiki/SyntaxHighlighter" rel="nofollow ugc">Alex Gorbatchev’s SyntaxHighlighter Script</a>. Code and source text of different mark-up or programming languages can be highlighted in WordPress.
There are other WordPress plugin based on the SyntaxHighlighter Script but these cause long page loading times and they are difficult to handle. The advantage of Syntax Highlighter ComPress is that only necessary brush files will be loaded dynamically. Another advantage is that your code can easily pasted into your posts, no need to replace all ‘<code><</code>‘ with ‘<code>&lt;</code>‘.
Supported mark-up or programming are: AppleScript, ActionScript3, Bash/shell, Coldfusion, C#, C++, CSS, Delphi, Diff, Erlang, Groovy, JavaScript, Java, JavaFX, Perl, PHP, Plain Text, Python, Ruby, Scala, SQL, Visual Basic and XML.
The plugin is localized in English, German and Romanian.

Syntax Highlighter Compress

Syntax Highlighter ComPress is a plugin for code syntax highlighting. It loads fast on the website and code can pasted easily into Wordpress.

IECST Highlighter vs Syntax Highlighter Compress