For every typescript file visual studio code uses an auto indentation of 8 spaces. This is a bit too much for my taste but I can't find where to change it.
Maybe it's available as a setting but under a different name as I can't find anything related to indentation.
UPDATE
I'm currently using the Prettier code formatter and that solves all formatting problems by auto formatting on save (if there is no syntax error)
You can change this in global User level or Workspace level.
Open the settings: Using the shortcut Ctrl , or clicking File > Preferences > Settings as shown below.
Then, do the following 2 changes: (type tabSize in the search bar)
Detect Indentation
In the toolbar in the bottom right corner you will see a item that looks like the following: 
After clicking on it you will get the option to indent using either spaces or tabs. After selecting your indent type you will then have the option to change how big an indent is. In the case of the example above, indentation is set to 4 space characters per indent. If tab is selected as your indentation character then you will see Tab Size instead of Spaces
If you want to have this apply to all files and not on an idividual file basis, override the Editor: Tab Size and Editor: Insert Spaces settings in either User Settings or Workspace Settings depending on your needs
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
To change the indentation based on programming language:
Open the Command Palette (CtrlShiftP | macOS: ⇧⌘P)
Preferences: Configure language specific settings... (command id: workbench.action.configureLanguageBasedSettings)
Select programming language (for example TypeScript)
Add this code:
"[typescript]": {
"editor.tabSize": 2
}
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.
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
How to turn 4 spaces indents in all files in VS Code to 2 spaces
( {2})(?: {2})(\b|(?!=[,'";\.:\*\\\/\{\}\[\]\(\)])) in the search field$1 in the replace fieldHow to turn 2 spaces indents in all files in VS Code to 4 spaces
( {2})(\b|(?!=[,'";\.:\\*\\\/{\}\[\]\(\)])) in the search field$1$1 in the replace fieldNOTE: You must turn on PERL Regex first. This is How:
"search.usePCRE2": trueHope someone sees this.
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
}
Simplified explanation with pictures for those that googled "Change indentation in VS Code"
Step 1: Click on Preferences > Settings
Step 2: The setting you are looking for is "Detect Indentation", begin typing that. Click on "Editor: Tab Size"
Step 3: Scroll down to "Editor: Tab Size" and type in 2 (or whatever you need).
Changes are automatically saved
Example of my changes
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
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).
Step 1: Open settingns.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
}
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.
