Mediawiki to Markdown

Pandoc

• http://pandoc.org/

From Command line

• pandoc readme.md -f markdown -t html -s -o readme.html
• pandoc mediawiki.txt -f mediawiki -t markdown-s -o readme.md

Markdown editor

• A simple, real-time Markdown editor with GitHub and Bitbucket themes

http://writeme.mattstow.com/