Simple Textile provides the option to format posts or pages using the Textile markup language.

This plugin supports Textile syntax for posts.

Texy! is text-to-HTML formatter and converter library. It allows you to write structured documents without knowledge or using of HTML language. You write documents in humane easy-to-read plain text format and Texy! converts it to structurally and valid (X)HTML code.

This plugin allows you to write posts using Markdown, DokuWiki, MediaWiki, reStructuredText, textile, HatenaSyntax, BBcode, etc.