CLion 2021.2 Help

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In this area, choose the code style scheme and change it as required. Code style scheme settings are automatically applied every time CLion generates, refactors, or reformats your code.

Code styles are defined at the project level and at the IDE level (global).

  • At the project level, settings are grouped under the Project scheme, which is predefined and is marked in bold. The Project style scheme is applied to the current project only.

    You can copy the Project scheme to the IDE level, using the Copy to IDE command.

  • At the IDE level, settings are grouped under the predefined Default scheme (marked in bold), and any other scheme created by the user by the Duplicate command (marked as plain text). Global settings are used when the user doesn't want to keep code style settings with the project and share them.

    You can copy the IDE scheme to the current project, using the Copy to Project command.




From this list, select the scheme to be used. The predefined schemes are shown bold. The custom schemes, ones created as copies of the predefined schemes, are in plain text. The location where the scheme is stored is written next to each scheme, for example, the Default scheme is stored in the IDE, the Project scheme is stored in the project.

Show Scheme Actions

Click this button to invoke the list of commands to manage the schemes:

  • Copy to IDE: select this option to copy the scheme settings to CLion.

  • Export: select this option to export the selected scheme to an .xml file or an .editorconfig file in the selected location.

  • Import Scheme: select this option to import the scheme of the selected type from the specified location.

  • Copy to Project: select this option to overwrite your current project code style settings with the settings from the selected IDE code style scheme.

  • Duplicate: select this option to create a copy of the selected scheme.

  • Reset: select this option to reset the default or bundled color scheme to the initial defaults shipped with CLion. This command becomes available only if some changes have been done.

  • Rename: select this option to change the name of the selected custom scheme. Press Enter to save changes, or Escape to cancel.

Tabs and Indents

Use tab character

  • If this checkbox is selected, tab characters are used:

    • On pressing the Tab key

    • For indentation

    • For reformatting code

  • If the checkbox is cleared, CLion uses spaces instead of tabs.

Smart tabs

An indentation consists of two parts. One part results from nesting code blocks, and the other part is determined by alignment.

  • If this checkbox is selected, the part that results from nesting contains both tabs and spaces (if necessary), while the part defined by alignment consists only of spaces.

  • If this checkbox is cleared, only tabs are used. This means that after reformatting a group of spaces that fits the specified tab size is automatically replaced with a tab, which may result in breaking fine alignment.

Tab size

In this field, specify the number of spaces that fits in a tab.


In this field, specify the number of spaces to be inserted for each indent level.

Last modified: 28 October 2021