BBCode Deluxe adds BBCode markup (and other shortcodes) to WordPress and BBPress.
Take simple notes on your Posts and Pages.
BlogText is a plugin for WordPress that adds a simple wiki-like syntax to WordPress and enriches it with a good WordPress editor integration.
simplifies Show Notes, write them in OSF, get them as HTML
SEO Link Creator inserts external links in posts. Optionally adds schema.org markup on created links.
JSON-LD for Article is simply the easiest solution to add valid schema.org microdata as a JSON-LD script to your blog posts or articles.
51Blocks JSON Schema Creator allows business owners to add schema markup to a single page or entire site.
Add IMDb syntax functionallity in your post. Enter simple tags and this plugin replace with IMBb data direct from IMDb Mobile Applications.
This plugin processes your posts and comments using the Parsedown library. It is a direct replacement for PHP Markdown Extra by Michel Fortin.
Automate Google Structured data for your wordpress built specially for SEO and social perspective.
Find Genesis hooks (action and filter hooks) quick and easily by seeing their actual locations inside your theme.
Remove empty paragraph tags, and remove broken paragraph tags from around block level elements.
A widget to display business contact info using HTML5 microdata markup from Schema.org to improve SEO results.
Easily include raw code in posts.
SmartFilter Security is the best security plugin to protect your WordPress site from malicious code injections in your posts and comments.
This plugin Escape Markup Code (HTML, etc) to Post Code Online.
Helpful plugin for those who post HTML/Markup using Prism. It support <pre><code class="language-xxxx"> syntax.
Code syntax highlighter using Google Prettify, supporting the HTML5 recommendation, and caching plugins.
PHPHaml for WordPress enables theme creation using the HAML template system.
Prop-ed allows you to embed pieces from prop-ed.com into your WordPress blog.
Pure HTML allows you to add standard HTML markup that is normally removed by the visual editor using a bbcode format or code snippets
This plugin lets you place an Author bio with Google authorship markup on your WordPress blog as a widget.
PHAMLP for WordPress enables theme creation using the HAML template system.
This plugin allows you to use FreeStyle Wiki syntax for typing up your posts and pages.
This is a plugin for wordpress that add html5 markup to your wordpress writing module.
A reStructuredText editor enhancement for WordPress.
Code Snippet is WordPress plugin for displaying code with highlighting in blog posts using the GeSHi engine.
A filter that displays blocks nicely while still allowing formatting and also colorizes the output using Google Prettify