SmartDown!

Write! is a distraction-free text editor that boosts your productivity. It supports markdown syntax, spell-checker, cloud integration and much more!

FocusWriter is a fullscreen, distraction-free word processor designed to immerse you as much as possible in your work. The program autosaves your progress, and reloads the last files you had open to make it easy to jump back in during your next writing session, and has many other features that make it such that only one thing matters: your writing.

StackEdit is a free, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.

Haroopad is a markdown enabled document processor for creating web-friendly documents. You can author various formats of documents such as blog article, slide, presentation, report, and e-mail as if experts did. Haroopad gives you same experiences in editing regardless of the platform you are working on. It runs on all three major operating systems—Windows, Mac OS X, and Linux.

The key to good writing is not that magical glass of Bordeaux, the right kind of tobacco or that groovy background music. The key is focus. What you need to write well is a spartan setting that allows you to fully concentrate on your text and nothing but your text. Many professional writers use SimpleText or Textedit because these are the only writing programs that are totally distraction free. But text editors are not perfect. That's why we made Writer.

MarkdownPad is a full-featured Markdown editor for Windows. Features: LivePreview : Instantly see how your documents look in HTML as you create them. Easy formatting with keyboard shortcuts. Markdown formatting can be applied (and removed) with handy keyboard shortcuts and toolbar buttons.

Writemonkey is a Windows zenware writing application with an extremely stripped down user interface, leaving you alone with your thoughts and your words. It is light, fast and free. With an array of innovative tools under the hood and full Markdown support, it helps you write better.

ghostwriter is a Windows and Linux text editor for Markdown, which is a plain text markup format created by John Gruber. ghostwriter provides a relaxing, distraction-free writing environment, whether your masterpiece be that next blog post, your school paper, or your NaNoWriMo novel. Here are just a few of its features:

Byword is designed to make writing more enjoyable with Markdown on your Mac, iPhone and iPad.

Write and organize your ideas in Gingko tree documents.

ReText is a simple text editor for Markdown and reStructuredText documents with syntax highlighting and optional live preview.It is written in Python using Qt libraries, able to run on any platforms (Linux and BSD are officially supported).

Hemingway App makes your writing bold and clear.The Hemingway Editor for Mac and PC highlights common errors. Use it to catch wordy sentences, adverbs, passive voice, and dull, complicated words.

MacDown is an open source Markdown editor for OS X, released under the MIT License. It is heavily influenced by Chen Luo’s Mou.

For Mac users to write without distractions. WriteRoom is a full screen writing environment. Unlike the cluttered word processors you're used to, WriteRoom lets you focus on writing. Requires Mac OS X 10.7+