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Awesome Open Source

JavaScript Engine Switcher NuGet version Download count

JavaScript Engine Switcher determines unified interface for access to the basic features of popular JavaScript engines (ChakraCore, Jering.Javascript.NodeJS, Jint, Jurassic, MSIE JavaScript Engine for .NET, NiL.JS, Microsoft ClearScript.V8 and VroomJs). This library allows you to quickly and easily switch to using of another JavaScript engine.

The supported .NET types are as follows:

  • JavaScriptEngineSwitcher.Core.Undefined
  • System.Boolean
  • System.Int32
  • System.Double
  • System.String


This library can be installed through NuGet:


JS engines

If you have used the JavaScript Engine Switcher version 2.X, then I recommend to first read “How to upgrade applications to version 3.X” section of the documentation.


Documentation is located on the wiki of this Repo.

Release History

See the changelog.


Apache License Version 2.0

Who's Using JavaScript Engine Switcher

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