A plain-text markup language for screenwriting. It mirrors the conventions that already exist. A markdown for screen writers.

Another static site generator for Node JS. Just markdown for markup.

This plugin allows you to compose content in Markdown on a per-item basis. The markdown version is stored separately (in the post_content_formatted column), so you can deactivate this plugin and your posts won't spew out Markdown, because HTML is stored in the post_content, just like normal. This is also much faster than doing on-the-fly Markdown conversion on every page load.

A swiss army knife for converting markup languages to other markup languages:

- Textile to Markdown
- Markdown to Textile
- Textile to Latex
- Markdown to HTML
- Etc

It's a Haskell command-line tool, but he set up a web service demo, too.

Allows you to use a replacement syntax parser, like the markdown or textile library for your mediawiki install.

A javascript formatting toolbar that outputs Markdown syntax.