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tl;dr... This gem gives you a custom markdown parser that allows you to prefix the markdown itself with YAML metadata.

Sometimes, just having plain markdown isn't good enough. Say you're writing a blog post, and you want to include some information about the post itself, such as the date and time it was posted. Keeping it in a separate file seems like a bad idea, but Markdown doesn't have any good way of doing this.

Enter Jekyll. It lets you put some YAML at the head of your file:

layout: post
title: An Awesome Blog Post

Four score and seven years ago,

Woudn't that be neat to use on other projects? I thought so too! Hence, metadown.


Add this line to your application's Gemfile:

gem 'metadown'

And then execute:

$ bundle

Or install it yourself as:

$ gem install metadown


Metadown might have the simplest API I've ever written: one method! Just send the string with the metadown you want rendered, and boom! You get an object back with two attributes: output and metadata.

require 'metadown'

data = Metadown.render("hello world")
data.output #=> "<p>hello, world</p>"
data. #=> "{}"

text = <<-MARKDOWN
key: "value"
hello world

data = Metadown.render(text)
data.output #=> "<p>hello, world</p>\n"
data. #=> {"key" => "value"}


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Added some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request