PIMD will be the base for the JavaScript version of LivingStyleGuide – an API to extend Markdown by DOM manipulations as known from the browsers.

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

Parse a markdown file and replace PNG badges with SVG ones.

Presents Markdown slides in your terminal

A simple utility for converting Markdown into Swift playgrounds.

Convert csv into a GitHub Flavored Markdown table

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

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

JayFlavoredMarkdown Converter

Embedded markdown template for Ruby on Rails

Gem containing the textilize, textilize_without_paragraph, and markdown helper methods removed from Rails.

Create dynamic web layouts with an extended Markdown syntax

Converts Basic HTML to markdown

Push your markdown files to your Zendesk knowledge base

DocuBot creates HTML or CHM documentation from a hierarchy of files, supporting markups like Markdown, Textile, and Haml.

A documentation testing tool, for documentation in Markdown files, for Ruby code

Repairs broken JSON: missing quotes and commas, unclosed brackets, trailing commas, unquoted keys, single quotes, comments, Python constants, NDJSON, Markdown code fences and list markers in LLM output, truncated documents, and more. A Ruby port of the jsonrepair JavaScript library — useful whene...

A gemified verison of the chjj/marked: "A full-featured markdown parser and compiler, written in javascript."

Massages HTML how you want to: sanitize tags, remove headers and footers; output to html, markdown, or plain text.

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