a markdown engine which makes you to describe a graph with Graphviz and highlight codes

Terminal Slideshow

Literate Programming, with Ruby.

generate pretty html document by lightweight markup language

Easily add markdown-based project documentation to your Rails application

UI Kit for DevLocker

Better markdown to HTML renderer.

Makeup provides markup rendering and code highlighting. It renders all kinds of markup formats using GitHub::Markup, and implements "fenced code blocks" for markdown files.

An absurdly simple script for rendering markdown with github styles.

Rails markdown template handler

Pre processors that allows the inclusion of external files and post processors for csn and json data.

Scaffold for Markdown.

render a github-flavored markdown file into a beautiful html document

HTML-formats text documents such as Markdown, textile, and source code

Markedly offers live preview feature to your favorite browser.

Syntax highlighted markdown editor for rails

As I said in the summary

Converts markdown to ansi.

markdown preview mdview starts a web server that allows you to browse directories and view `.md` files.

MoCo monitors web templates. On updates the templates are compiled and the browser reloaded. MoCo currently supports CoffeeScript, Sass, LESS, Markdown and Haml. Mac OS X only.