Where can I find the TypeScript version installed in Visual Studio?

Question

If you only have TypeScript installed for Visual Studio then:

1. Start the Visual Studio Command Prompt
2. Type tsc -v and hit Enter

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Visual Studio 2017 versions 15.3 and above bind the TypeScript version to individual projects, as this answer points out:

1. Right click on the project node in Solution Explorer
2. Click Properties
3. Go to the TypeScript Build tab

Two years after the question was asked, using Visual Studio Command Prompt still did not produce right answer for me. But the usual Help|About window seems working these days:

UPDATE (June 2017):

1. VS 2013 does NOT show this info. (Later note: VS 2017 Enterprise edition does not show this info either).

2. VS uses Microsoft Build Engine (MSBuild) to compile Typescript files. MSBuild can support several major releases of Typescript, but About window shows only the latest one.

Here is how to get to the bottom of it:

A. To check which versions of Typescript are installed with your Visual Studio/MSBuild, inspect contents of C:\Program Files (x86)\Microsoft SDKs\TypeScript folder. For example, I have versions 1.0, 1.8 and 2.2:

B. Check which version of Typescript is requested by your project. In *.csproj file, look for <TypeScriptToolsVersion> tag, or you can add it if it is missing, like this

    <PropertyGroup> 
        ...
        <TypeScriptToolsVersion>1.8</TypeScriptToolsVersion>
        ...
    </PropertyGroup>

C. Finally, you can check, which version of Typescript is actually used by MSBuild. In TOOLS | Options | Projects and Solutions | Build and Run set MSBuild project output verbosity to Detailed:

Then build your project and inspect the output: you should see the reference to one of Typescript folders described in (A).

Based in the response of basarat, I give here a little more information how to run this in Visual Studio 2013.

• Go to Windows Start button -> All Programs -> Visual Studio 2013 -> Visual Studio Tools A windows is open with a list of tool.

• Select Developer Command Prompt for VS2013
• In the opened Console write: tsc -v
• You get the version: See Image

[UPDATE]

If you update your Visual Studio to a new version of Typescript as 1.0.x you don't see the last version here. To see the last version:

• Go to: C:\Program Files (x86)\Microsoft SDKs\TypeScript, there you see directories of type 0.9, 1.0 1.1
• Enter the high number that you have (in this case 1.1)
• Copy the directory and run in CMD the command tsc -v, you get the version.

NOTE: Typescript 1.3 install in directory 1.1, for that it is important to run the command to know the last version that you have installed.

NOTE: It is possible that you have installed a version 1.3 and your code use 1.0.3. To avoid this if you have your Typescript in a separate(s) project(s) unload the project and see if the Typescript tag:

<TypeScriptToolsVersion>1.1</TypeScriptToolsVersion> 

is set to 1.1.

[UPDATE 2]

TypeScript version 1.4, 1.5 .. 1.7 install in 1.4, 1.5... 1.7 directories. they are not problem to found version. if you have typescript in separate project and you migrate from a previous typescript your project continue to use the old version. to solve this:

unload the project file and change the typescript version to 1.x at:

  <TypeScriptToolsVersion>1.x</TypeScriptToolsVersion>

If you installed the typescript using the visual studio installer file, the path to the new typescript compiler should be automatically updated to point to 1.x directory. If you have problem, review that you environment variable Path include

C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.x\

SUGGESTION TO MICROSOFT :-) Because Typescript run side by side with other version, maybe is good to have in the project properties have a combo box to select the typescript compiler (similar to select the net version)

The tsc -v command run technically reads the TypeScript compiler version within the SDK directory set within the Windows Path variable. This doesn't necessarily reflect the latest version installed as the Path variable is not updated with subsequent installations.

The version that VS.NET uses to compile the TypeScript is what's in the project's configuration:

<TypeScriptToolsVersion>1.5</TypeScriptToolsVersion>

To help explain this more in detail I created the following post which has the specifics on the TypeScript versions installed, and which version VS.NET uses to compile the TypeScript files.

Which Version of TypeScript is Installed and Which Version is Visual Studio Using?

I also added a feature request on Microsoft Connect to make viewing and switching the TypeScript targeted version in VS.NET easier. This isn't really a TypeScript feature request as much as it is a VS.NET IDE enhancement.

Allow switching TypeScript configured version from Project Properties IDE

The TypeScript team sorted this out in Visual Studio 2017 versions 15.3 and later, including the free Community edition.

How to See Which TypeScript Versions are Installed in Visual Studio

All you now need do is to go to project properties of any TypeScript Visual Studio project (right-click the project file in Solution Explorer/Properties), then go to the TypeScript Build tab on the left-hand side. This has a 'Typescript version' dropdown that shows you the version the project is using, and if you open it the dropdown shows you ALL versions of TypeScript currently installed in Visual Studio.

The actual installs are currently at C:\Program Files (x86)\Microsoft SDKs\TypeScript and then subfolders by version number, at least on Win10 on my computer. If you want to see the exact version (e.g. 2.8.3 rather than just 2.8) you can find the appropriate tsc.exe in here and look at its properties (Details tab in right-click/Properties in File Explorer).

How to Install Specific TypeScript Version

If you want to install a specific version of TypeScript then these can be found on Visual Studio Marketplace, although specific version numbers can be a little difficult to find in that list. A Google search for, for example, 'visual studio marketplace typescript 3.3.1' will usually find the exact version you want. If you install from here and restart Visual Studio the version will appear in the dropdown. Note also that some of the latest versions of TypeScript (e.g. 4.2) will refuse to install if there's a more recent version installed.

Node.js Console Applications

This answer does not apply to the 'Node.js Console Application' project type, which doesn't have a TypeScript Build tab in project properties. This is because it uses a version of TypeScript installed in the project folder using npm. The version can be seen and changed in the package.json file, and when installed appears under the npm entry in Solution Explorer, and in the node_modules/typescript folder on disk.

On Visual Studio 2015 just go to: help/about Microsoft Visual Studio Then you will see something like this:

Microsoft Visual Studio Enterprise 2015 Version 14.0.24720.00 Update 1 Microsoft .NET Framework Version 4.6.01055

...

TypeScript 1.7.6.0 TypeScript for Microsoft Visual Studio

....

You can run it in NuGet Package Manager Console in Visual Studio 2013.