Ghost - Ghost is a fully open source, adaptable platform for building and running a modern online publication. We power blogs, magazines and journalists from Zappos to Sky News.
rubular - A ruby based regular expression editor
Caramella - A clean, modern blogging platform without the fuss
RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.
You Don't Need WordPress - Create a blog with only Google Docs
RegEx Generator - RegEx Generator is a simple-to-use application that comes with the brilliance of intuitive regex and is also helping you out to test the regex.