Textile AlternativesMarkup Languages and other similar apps like Textile

Markdown is a text-to-HTML conversion tool for web writers. Markdown allows you to write using an easy-to-read, easy-to-write plain text format, then convert it to structurally valid XHTML (or HTML).

Pandoc is a Haskell library for converting from one markup format to another, and a command-line tool that uses this library.

MultiMarkdown, or MMD, is a tool to help turn minimally marked-up plain text into well formatted documents, including HTML, PDF (by way of LaTeX), OPML, or OpenDocument (specifically, Flat OpenDocument or ‘.

For short it's the Markdown syntax standard. It replaces the old original Markdown.

It reads a text file with minimal markup such as bold and //italic// and converts it to the following formats (among others):

PHP port of the Markdown text-to-HTML conversion tool for web writers.

GitHub uses "GitHub Flavored Markdown," or GFM, across the site--in issues, comments, and pull requests. It differs from standard Markdown (SM) in a few significant ways, and adds some additional functionality.

Docutils is an open-source text processing system for processing plaintext documentation into useful formats, such as HTML, LaTeX, man-pages, open-document or XML. It includes reStructuredText, the easy to read, easy to use, what-you-see-is-what-you-get plaintext markup language.

A minimal markdown editor in the eOS design.

Texy! is a lightweight markup language as well as converter of this format to XHTML, in a form of a library written in the PHP scripting language. It allows the user to write structured documents without knowledge or using of HTML language.

Markup language for AMuseWiki.

The ReAdABLE Human Format aims at Agile Documentation by making WRITING and READING document easier for End User and Developer alike, while allowing a high degree of flexibility.