A beautiful and rich-featured Markdown editor for iPhone and iPad

1Writer combines all the basic text editing features you would expect with all the advanced features you will ever need. Use 1Writer to write, research, revise, and share your ideas with maximum efficiency.


1Writer provides a distraction free writing environment. You can create and edit plain text or Markdown files. It does have many features including inline Markdown preview, word count, dark theme, TextExpander support, insert photo, an extra keyboard row, and many more. The extra keyboard row is a convenient row of buttons for navigation, formatting, special characters and actions. See the formatted results with inline Markdown preview while you write and a full, rich-text preview when you're done.


Pick and choose existing Dropbox folders you want to sync or sync them all. Work offline and your changes will be synced next time you connect to the Internet. It also supports iCloud Drive - start a new document on your Mac and continue editing it in 1Writer, and vice versa. You can send text to 1Writer from Safari and other apps via the Share extension or 1Writer URL scheme.

Supported file extensions: txt, md, markdown, mdown and fountain.

See 1Writer URL Scheme

Write in landscape mode with a beautiful dark theme. The dark theme changes the colors in the entire app, not only the editor.


With the in-app web browser, you can research and look up information directly in 1Writer without having to switch apps. It can convert text selection to Markdown syntax and put it on the clipboard in a single action. Create and access your favorite websites with bookmarks.

And More

Today widget

Access your recent documents and favorites from the Notification Center, or create a new document in one tap.

Passcode and Touch ID

Use a passcode and Touch ID to protect your documents from unauthorized users.


Choose from 17 different fonts, change your font size and line spacing. Four different-colored themes to choose from.


Create a list of things to do or topics to research, and easily check them off in preview mode.

Search and hashtag

Search within a folder to find the document you need, or view related documents that have the same hashtag.

Customizable extra keyboard row

Customize the extra keyboard row to meet your needs, assign your most used actions and change special characters.