How to change indentation in Visual Studio Code?

https://i.stack.imgur.com/OcEgm.png

If you want to have this apply to all files and not on an individual file basis, then override the Editor: Tab Size and Editor: Insert Spaces settings in either User Settings or Workspace Settings depending on your needs

Edit 1

To get to your user or workspace settings go to Preferences -> Settings. Verify that you are on the User or Workspace tab depending on your needs and use the search bar to locate the settings. You may also want to disable Editor: Detect Indentation as this setting will override what you set for Editor: Insert Spaces and Editor: Tab Size when it is enabled

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You can change this in global User level or Workspace level.

Open the settings: Click the gear on the bottom left, then click Settings as shown below.

https://i.stack.imgur.com/FvoPG.png

Then, do the following 2 changes: (type tabSize in the search bar)

Uncheck the checkbox of Detect Indentation Change the tab size to be 2/4 (Although I strongly think 2 is correct for JS. Haha :))

https://i.stack.imgur.com/BltIv.png

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To change the indentation based on programming language:

Open the Command Palette (CtrlShiftP | macOS: ⇧⌘P). Type and select: Preferences: Configure Language Specific Settings... (command id: workbench.action.configureLanguageBasedSettings). Select a programming language (for example TypeScript).

If Settings menu is opened (since 1.66.0): 4. Press → to place the cursor right beside the language filter (e.g. @lang:typescript). 5. Type Tab Size and enter your preferred value in the text box.

If settings.json file is opened: 4. Add this code: "[typescript]": { "editor.tabSize": 2 }

See also: VS Code Docs

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You might also want to set the editor.detectIndentation to false, in addition to Elliot-J's answer.

VSCode will overwrite your editor.tabSize and editor.insertSpaces settings per file if it detects that a file has a different tab or spaces indentation pattern. You can run into this issue if you add existing files to your project, or if you add files using code generators like Angular Cli. The above setting prevents VSCode from doing this.

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Code Formatting Shortcut:

VSCode on Windows - Shift + Alt + F

VSCode on MacOS - Shift + Option + F

VSCode on Ubuntu - Ctrl + Shift + I

You can also customize this shortcut using preference setting if needed.

column selection with keyboard Ctrl + Shift + Alt + Arrow

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In my case "EditorConfig for VS Code" extention is overriding VSCode settings. If you have it installed, then check .editorconfig file in the root folder of the project.

Here is an example config. The "indent_size" sets the number of spaces for a tab.

# editorconfig.org
root = true

[*]
indent_style = space
indent_size = 4
end_of_line = lf
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true

[*.md]
trim_trailing_whitespace = false

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How to turn 4 spaces indents in all files in VS Code to 2 spaces

Open file search

Turn on Regular Expressions

Enter: ( {2})(?: {2})(\b|(?!=[,'";\.:\*\\\/\{\}\[\]\(\)])) in the search field

Enter: $1 in the replace field

How to turn 2 spaces indents in all files in VS Code to 4 spaces

Open file search

Turn on Regular Expressions

Enter: ( {2})(\b|(?!=[,'";\.:\\*\\\/{\}\[\]\(\)])) in the search field

Enter: $1$1 in the replace field

NOTE: You must turn on PERL Regex first. This is How:

Open settings and go to the JSON file

add the following to the JSON file "search.usePCRE2": true

Hope someone sees this.

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To set all existing files and new files to space identation to 2 just put it in your settingns.json (in the root of json):

"[typescript]": {
        "editor.defaultFormatter": "vscode.typescript-language-features",
        "editor.tabSize": 2,
        "editor.insertSpaces": true,
        "editor.detectIndentation":false
 }

you can add the language type of the configuration:

"[javascript]": {
    "editor.tabSize": 2,
    "editor.insertSpaces": true,
    "editor.detectIndentation":false
} 

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Simplified explanation with pictures for those that googled "Change indentation in VS Code"

Step 1: Click on Preferences > Settings

https://i.stack.imgur.com/OQzVp.png

Step 2: The setting you are looking for is "Detect Indentation", begin typing that. Click on "Editor: Tab Size"

https://i.stack.imgur.com/c0lUV.png

Step 3: Scroll down to "Editor: Tab Size" and type in 2 (or whatever you need).

https://i.stack.imgur.com/g1nen.png

Changes are automatically saved

https://i.stack.imgur.com/VIrGt.png

Example of my changes

https://i.stack.imgur.com/PK5gn.png

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Setting the indentation in preferences isn't allways the solution. Most of the time the indentation is right except you happen to copy some code code from other sources or your collegue make something for you and has different settings. Then you want to just quickly convert the indentation from 2 to 4 or the other way round.

That's what this vscode extension is doing for you

https://i.stack.imgur.com/SObpq.gif

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Step 1: Open settings.json in vscode

Step 2: Add the lines as below for the programming language (an example is below)

For typescript and javascript

"editor.detectIndentation": false,
"[typescript]": {
        "editor.defaultFormatter": "vscode.typescript-language-features",
        "editor.tabSize": 2,
        "editor.insertSpaces": true,
        "editor.detectIndentation":false
 },
"[javascript]": {
    "editor.tabSize": 2,
    "editor.insertSpaces": true,
    "editor.detectIndentation":false
}

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Problem: The accepted answer does not actually fix the indentation in the current document.

Solution: Run Format Document to re-process the document according to current (new) settings.

Problem: The HTML docs in my projects are of type "Django HTML" not "HTML" and there is no formatter available.

Solution: Switch them to syntax "HTML", format them, then switch back to "Django HTML."

Problem: The HTML formatter doesn't know how to handle Django template tags and undoes much of my carefully applied nesting.

Solution: Install the Indent 4-2 extension, which performs indentation strictly, without regard to the current language syntax (which is what I want in this case).

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I wanted to change the indentation of my existing HTML file from 4 spaces to 2 spaces.

I clicked the 'Spaces: 4' button in the status bar and changed them to two in the next dialog box.

I use 'vim' extension. I don't how to re-indent without vim

To re-indent my current file, I used this:

gg

=

G

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Adding on: yes, you can use the bottom-right UI to configure the space settings. But if you have existing code that's not formatted to the new spacing, then you can right-click anywhere within the file and click Format Document. Took me a while to figure this out until I stumbled on this issue.

Format Document menu

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For me it was docs-markdown andDocs Authoring Pack. Microsoft's many modules messing with each other yet again! Disabled the extensions and now good to go again 😀

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The Problem of auto deintending is caused due to a checkbox being active in the settings of VSCode. Follow these steps:

goto preferences goto settings search 'editor:trim auto whitespace' Uncheck The box

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The following search-and-replace regex changes the number of spaces per indentation level from 4 to 2 in existing files. It's relatively easy to understand, reliable, and doesn't require installing anything.

Instructions

Press CtrlH (or ⌥⌘F on macOS).

Make sure regex matching is on by clicking on the .* button in the search popup or pressing AltR (or ⌥⌘R on macOS).

In the Find field, enter ^(?:( ) )?(?:( ) )?(?:( ) )?(?:( ) )?(?:( ) )?(?:( ) )?(?:( ) )?(?:( ) )?(?:( ) )?

In the Replace field, enter $1$2$3$4$5$6$7$8$9

Finally press CtrlEnter (or ⌘Enter on macOS) to apply to the current file.

You could also use this in the Search pane on the left to do this across all files in your project. However, note that this should only be run once per file. It will mess up the indentation of files that already use 2 spaces.

Extra Credit: How It Works

The way the regular expression works is it matches groups (?: ... ) of four spaces at a time at the beginning ^ ... of each line, only capturing ( ... ) the first two spaces. Each indentation level is optional ... ?, so it works for as many indentation levels as the pattern is repeated and there are in each line. Then it replaces the whole pattern with only the captured spaces $1, $2, ..., effectively replacing every four-space indentation level with two spaces.

This pattern only works up to 9 indentation levels (I'm not sure if $10 would work, but if so this could be expanded indefinitely).

Extra Extra Credit: Extending

You could adapt the pattern to decrease the number of spaces per indentation level in a file from any original number to another lower target number.

Put the target number of spaces inside the inner parenthesis. Then, put the remaining original number of spaces in the outer parenthesis, so the total number of spaces in the pattern is the original.

For example, if you want to change the indentation level from 6 to 4, repeat this search pattern as many times as you like:

^(?:( ) )? or ^(?:( {4}) {2})?

And use the same number of $1, $2 in the replacement pattern.

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First, check if you have installed "EditorConfig for VS Code". It was overriding my editor settings. I spent all day correcting this problem.

In the project find .editorconfig file and ones changed there it will work.

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I like these settings for indentation you can modify them according to need.

You can open VScode setting.json file by typing CTRL+SHIFT+P and paste below the JSON setting

setting.json

"[javascript]": {
    "editor.defaultFormatter": "vscode.typescript-language-features",
    "editor.formatOnSave": true,
    "editor.tabSize": 4,
    "editor.insertSpaces": false,
    "editor.detectIndentation": false,
    "editor.wrappingIndent": "deepIndent", 
    "editor.autoIndent": "full"
},
"[typescript]": {
    "editor.defaultFormatter": "vscode.typescript-language-features",
    "editor.formatOnSave": true,
    "editor.tabSize": 4,
    "editor.insertSpaces": false,
    "editor.detectIndentation": false,
    "editor.wrappingIndent": "deepIndent", 
    "editor.autoIndent": "full"
}

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