The easiest, but slowest, way to install ASP.NET 5 is through Visual Studio 2015.

Alternatively, you can install the command line tools by following the instructions below. These are instructions are for the beta 3 versions of the tools as posted on ASP.NET 5 on GitHub. Beginning with beta 4 these will be obsolete.

Visual Studio 2015

Go here download a free copy of Visual Studio 2015 CTP.

Download Visual Studio 2015 CTP 6

Command Line Tools

These instructions are found in more complete form on the ASP.NET 5 Home GitHub repository.


Execute the following in Command Prompt (cmd.exe)

@powershell -NoProfile -ExecutionPolicy unrestricted -Command "iex ((new-object net.webclient).DownloadString(''))"


You must have >= Mono 3.6.0 installed.

If you have brew, the following will the correct version of Mono and the KVM. Execute these in the Terminal.

brew tap aspnet/k
brew install kvm


You must have Mono 3.4.1 or greater installed. Execute these on the command line.

curl -sSL | sh && source ~/.k/kvm/

Beta 4

K, KRE, KVM, and KLR were all placeholder names. They have all been renamed in beta 4, but are stable as of March 14, 2015. ■