This is a quick tutorial to help you understand the main features of TextNut.

First, it is better to understand how TextNut manages your files. It is in these two ways.

  1. Library. All documents in library are saved in default application sandbox folder[1]. The library managed documents utilise all features from TextNut, such as images attachments, blog publishing or iCloud sync etc.
  2. External folder. If you want more control on your files. You can link any folders in your Mac. TextNut scans all markdown files within that folder and its sub-folders. Note, these files does NOT sync with iCloud naturally. However, you may put them under the sharing folder, e.g, Dropbox, iCloud Drive or Box folder. You still can manage images by right click on that folder, open Properties popup, then modify the external image saved location.

All documents are auto-saved. If you manually save it, an explicit version is created. From application menu File->Browser All versions, you can retrieve or restore old version.

Below are a few of tasks to help you get familiar with TextNut in a minute.

  • TextNut supports both Rich and Markdown editing. You can switch between them by clicking the M button at the bottom of the window. Please note, Rich mode is NOT PREVIEW! You can use same markdown syntax to write. The markdown is rendered on-the-fly. Feel free switching between Rich and Markdown mode any time.
Tips: Click on task (that round corner rectangle) to change its state to ongoing or completed.
  • There are many ways to format text, the easier way is using markdown syntax.
Practice: Try to insert a pair of ** in below text. Please note, This works in both editing mode.

The quick brown fox jumps over the lazy dog.

As example, inserting ** like this: The quick **brown fox jumps over** the lazy dog.
  • When selecting the text, there is a popover to apply the formatting. That lets you write with markdown even you don’t know what it is! You can turn off this popover from Preferences if you feel it is annoying.
Tips: Open Preferences from application menu TextNut->Preferences or shortcut CMD-,.
  • In Preferences, you can add integration with WordPress, Blogger and Medium. All of them support multiple accounts and uploading images!
  • You can preview or save document into HTML, PDF, RTF or markdown format by clicking the export button at the bottom of the window.
Tips: If you add any Wordpress, Blogger or Medium integration, they can be found from the export pop menu.
  • TextNut uses CSS to control the exported PDF or HTML format. In Preferences, there are 6 default CSS. You also can create your own CSS.
  • Themes is for this editor look-and-feel. There are 6 default themes and you also can create or modify the theme from Preferences.
  • There are some shortcuts worth to try, for example, CMD-2, SHIFT-CMD-T, SHIFT-CMD-R or CTRL-CMD-Z etc, find out more from application menu.

That’s just a few of the great features in TextNut. Don’t forget to visit TextNut website for the latest updates. You are more than welcome if you are sending any feedback to us!


Sandbox folder is normally at your home folder, i.e, ~/Library/Containers/com.edgenius.osx.TextNut. The documents are in ~/Library/Containers/com.edgenius.osx.TextNut/Data/Library Application Support/com.edgenius.osx.TextNut. The document file is ending with .mknut. If opening it by right mouse Show Package Content menu, you will find out a markdown file, attached images and a meta-info file. These files are fully managed by TextNut, except backup, we don’t suggest you modify or delete them in case break the whole library.