Olelo is a git-based wiki which supports many markup languages, tags, embedded TeX and much more. It can be extended through plugins.

McBean can convert documents from one format to another. McBean currently supports: * HTML * Markdown (a subset) * Textile (a subset) * Creole (a subset) with the help of Loofah, Nokogiri, RDiscount, RedCloth and Creole. "You can't teach a Sneetch." -- Sylvester McMonkey McBean

This gem converts creole to html, then converts html to markdown.

Hamlet is a template language whose goal is reduce HTML syntax to the essential parts.

Malt provides a factory framework for rendering a variety of template and markup document formats.

HTML-formats text documents such as Markdown, textile, and source code

Simple gem for use a markup language in a column

Previw your wiki file as local html file. (format: markdown, rest, textile, rdoc and so on.)

A static site generator that supports code, photos and files.