Migrate a Wordpress export XML file to Middleman-style markdown files

Upmark has the skills to convert your HTML to Markdown.

Serves up a folder of Markdown or Textile formatted files via Sinatra.

ZMediumToMarkdown lets you download Medium post and convert it to markdown format easily.

Presents Markdown slides in your terminal

A simple utility for converting Markdown into Swift playgrounds.

This is a custom Markdown processor for Jekyll 2.0 and above. It allows you to use GitHub's HTML::Pipeline in your Jekyll projects.

Gluegun is glues markdown docs from github and pulls together a beautiful docs site.

Postview is a simple blogware written in Ruby using the Sinatra DSL for render files written in Markdown.

Renders markdown via rdoc-rouge, an RDoc and Rouge bridge. Able to use fenced code blocks like github, and includes a default pygments stylesheet.

Pith builds static websites, using markup/template languages including Haml, Sass, ERb, Liquid, Markdown and Textile.

Eventually this may be a markdown to PDF, ePUB, MOBI processor. For now it's just something I'm playing around with, so use at your own risk

Simple command line creation and editing of Evernote notes in Markdown format with your favorite editor via a gem installed binary

A danger plugin for working with bodies of markdown prose.

Embedded markdown template for Ruby on Rails

A Ruby library that is the core module of the Qiita-specified markdown processor.

Prints markdown containing a random post from thecodinglove.com.

A danger.systems plugin for your markdown TOC.

A Ruby gem that will help you export your Markdown changelog into beautiful HTML pages.

the ebook generate tools from markdown plain text