Prismatic (prismatic) free WordPress plugin

The only 3-in-1 syntax highlighter!

Display beautiful code snippets with Prism.js, Highlight.js, or plain code escaping:

• Prism.js – Code escape + syntax highlight using Prism.js
• Highlight.js – Code escape + syntax highlight using Highlight.js
• Plain Flavor – Code escape without syntax highlight

Check out a demo post using Highlight.js. I also use this plugin at WP-Mix and Plugin Planet for all code snippets