Welcome to Katana

Katana is a flexible set of components for building and hosting OWIN-based web applications.

This site is the home for Katana host, server, and middleware source code and documentation. Official releases of Katana components (including prerelease versions) can be found on http://nuget.org.

These products are actively developed by the Katana team assigned to the Microsoft Open Tech Hub and in collaboration with a community of open source developers. Together we are dedicated to creating the best possible platform for Web application hosting and development.

See the list of Packages for information about individual components.

Source Code

You can browse the source code via the web or use git to clone the source repository.

git clone https://git01.codeplex.com/katanaproject

To build and run the tests from a command prompt, run build.cmd (found in the root directory). Note: As part of building you may need to obtain NuGet packages from the Outercurve Foundation NuGet public feed*.


*By running build, you will be initiating the download of other software packages from a NuGet-based feed that is owned by the Outercurve Foundation. You are responsible for locating, reading and complying with the license terms that accompany each such package. Each package is licensed to you by its owner. Microsoft is not responsible for, nor does it grant any licenses to, third-party packages.

See Katana.sln in the root directory to open the solution in Visual Studio.

Signed Nightly Builds

If you do not want to build the source, nightly builds are available via a private NuGet feed. Nightly builds are meant for developers to try out new features or bug fixes ahead of an official prerelease or final build. We strongly urge you to only use official builds for production.

To use the nightly build:
  1. In your Package Manager settings add one of the following package sources:
  2. Add or update to the latest build of Katana.


There are lots of ways to contribute to the project, and we appreciate our contributors.
You can contribute by reviewing and sending feedback on code commits, suggesting and trying out new features as they are implemented, submit bugs and help us verify fixes as they are checked in, as well as submit code fixes or code contributions of your own. Note that all code submissions will be rigorously reviewed and tested by the Katana team, and only those that meet an extremely high bar for both quality and design/roadmap appropriateness will be merged into the source.


For details on our planned features and future direction, please refer to our roadmap.

Last edited Jun 19, 2014 at 6:58 PM by Tratcher, version 17