Few Useful Visual Studio Extensions for .NET

1. ASP.NET Solution Template 
• A solution layout for a typical ASP.NET web application, pre-configured with Git, Gulp.js, NuGet and StyleCop development tools. It is well suited for developing a single-page application (SPA).
2. ASPNET MVC ANGULAR Project Template
• Installation for ASPNET MVC Angular project Visual studio extension
3. CodeMaid 
• CodeMaid is an open source Visual Studio extension to cleanup, dig through and simplify our C#, C++, F#, VB, PHP, JSON, XAML, XML, ASP, HTML, CSS, LESS, SCSS, JavaScript and TypeScript coding.
4. webessentials
• If you ever write CSS, HTML, JavaScript, TypeScript, CoffeeScript or LESS, then you will find many useful features that make your life as a developer easier.
5. Productivity Power Tools
• A set of extensions to Visual Studio 2013 Professional (and above) which improves developer productivity.
6. Indent Guides 
• Adds vertical lines at each indent level.
7. Task Runner Explorer
• Provides custom task runner support to Visual Studio.
8. GhostDoc
• GhostDoc is a Visual Studio extension that automatically generates XML documentation comments for methods and properties based on their type, parameters, name, and other contextual information.
9. Ionic Tabs Template
• Build a cross-platform hybrid mobile app for iOS, Android, and Windows Phone with the Ionic Framework and Apache Cordova. This project comes with a simple tab-based layout.

Paid extensions for visual studio, ReSharper, OzCode, NCrunch, .NET Reflector