MarkdownPad

Screenshot from MarkdownPad

As some of my co-workers know, I am a huge fan of Markdown. From the Markdown website:

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).

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The overriding design goal for Markdown's formatting syntax is to make it as readable as possible. The idea is that a Markdown-formatted document should be publishable as-is, as plain text, without looking like it's been marked up with tags or formatting instructions. While Markdown's syntax has been influenced by several existing text-to-HTML filters, the single biggest source of inspiration for Markdown's syntax is the format of plain text email.

I love the fact that documents formatted using Markdown are readable even as plain text.

MarkdownPad is a Windows Markdown editor with live preview. It allows you to see how your document is formatted as you type. The free version supports vanilla markdown syntax, and the Pro version adds some additional features such as support for Markdown Extra syntax.