Marksy - easily translate between markup languages on the fly, in your browser

Marksy is both an online service (http://marksy.arc90.com) and a Chrome Extension (https://chrome.google.com/webstore/detail/marksy/glncdocnokp...) which lets you quickly convert between different markup languages.

The full writeup is here: http://lab.arc90.com/2013/02/20/marksy/