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A snippet is a piece of code that you want to save for later use.

Adding a Snippet

Follow one of the following steps:

  • Select "File" > "New Snippet" from the menu bar.
  • Click "+" button opposite the search in second column.
  • Press Cmd+N on macOS or Ctrl+N on Windows or Linux.


The snippet is created in the folder that is currently selected or in "Inbox" if not.

Language Selection

In the bottom right corner of the editor press the current snippet language, by default it is "Plain text", then select the language you need from the drop-down list.

Moving Snippet

Drag and drop the snippet to the desired folder.

Deleting Snippet

Call the context menu by right-clicking on the snippet and selecting "Delete".


The snippet will be moved to "Trash". Later you can return the snippet back by dragging it back to the desired folder.

Copying Snippet

Follow one of the following steps:

  • Select "Editor" > "Copy Snippet to Clipboard" from the menu bar.
  • Press Shift+Cmd+C on macOS or Shift+Ctrl+C on Windows or Linux.

Hiding Snippets from Subfolders


Select "View" > "Hide Subfolder Snippets" from the menu bar.

Compact Mode


Select "View" > "Compact Mode" from the menu bar.

Formatting Snippet

Snippet formatting makes the snippet code formatted.

Follow one of the following steps:

  • Select "Editor" > "Format" from the menu bar.
  • Press Shift+Cmd+F on macOS or Shift+Ctrl+F on Windows or Linux.

Available Languages:

  • Bash / Dockerfile / Gitignore / INI /Properties
  • CSS / Sass / SCSS / Less
  • GraphQL
  • HTML
  • Jade / Pug
  • Java
  • JavaScript / TypeScript
  • JSON / JSON5
  • Markdown
  • PHP
  • TOML
  • XML
  • YAML

Real-time Render HTML & CSS


Follow these steps:

  • Add new snippet or select already created.
  • Add second fragment.
  • Select for fragments HTML & CSS languages.
  • Select "Editor" > "Preview Code" from the menu bar or press Shift+Cmd+P on macOS or Shift+Ctrl+P on Windows or Linux.

massCode released under the AGPL v3 License.
Snippet collection released under the CC-BY-4.0 License.