StackEdit
Whether you write, you review, you comment, StackEdit's layout provides you with the flexibility you need, without sacrifice. StackEdit’s Scroll Sync feature accurately binds the scrollbars of the editor panel and the preview panel to ensure that you always keep an eye on the output while writing. StackEdit can sync your files with Google Drive, Dropbox and GitHub. It can also publish them as blog posts to Blogger, WordPress and Zendesk. You can choose whether to upload in Markdown format, HTML, or to format the output using the Handlebars template engine. Even when you travel, StackEdit is still accessible and lets you write offline just like any desktop application. You have no excuse! StackEdit supports different Markdown flavors such as Markdown Extra, GFM and CommonMark. Each Markdown feature can be enabled or disabled at your convenience.
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Typora
Typora gives you a seamless experience as both a reader and a writer. It removes the preview window, mode switcher, syntax symbols of markdown source code, and all other unnecessary distractions. Instead, it provides a real live preview feature to help you concentrate on the content itself. Typora allows you to manage your files easily, providing both file tree panel and articles (file list) side panel, allows you to manage your files easily. Organize your files your way, including putting in sync services, like Dropbox or iCloud. Automatically see the Outline structure of your documents in outline panel, which allows you to quickly go through the document and jump to any section with one click. Export to PDF with bookmarks. Go further and export or import. More formats, including docx, OpenOffice, LaTeX, MediaWiki, Epub, etc, can be exported or imported. See how large your document is in words, characters, lines, or reading minutes.
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ghostwriter
Enjoy a distraction-free writing experience, including a full screen mode and a clean interface. With Markdown, you can write now, and format later. The built-in light and dark themes provide an aesthetic writing experience out of the box. If the these are not enough, you can create your very own! Preview your Markdown document in HTML. With the live preview, you can copy the HTML to paste into your blog, or export to another format. The live preview is optimized for large documents, so you can work carefree without worrying about the application freezing as you type. In addition to displaying a live word count at the bottom of the window, ghostwriter displays even more live statistics in its Document Statistics and Session Statistics sidebar tabs. Easily create image URLs within your Markdown document by dragging and dropping an image from your file system into ghostwriter's editor.
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Byword
Draft a blog post, write that story or complete a school report wherever you are. Use Markdown to format text with easy keyboard shortcuts, subtle syntax highlighting, word counters with live update, and much more. All your documents, on all your devices. With iCloud and Dropbox, you can create documents in Byword on your Mac and access them on your iPad, iPhone, and iPod touch. And vice versa. You can edit them from anywhere, on any device you use. Byword includes complete Markdown support. Preview your documents in app, export to HTML, PDF, rich text, or publish directly to Medium, WordPress, Blogger, Tumblr and Evernote. The lack of support for rich text is due to technical limitations and limited development resources. We are evaluating the cost/benefit of investing in rich text support of iOS. Meanwhile, we strongly recommend opting for plain text and markdown format for your documents. Macworld has a great article explaining why opting for plain text today is a good idea.
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