What is the .NET Foundation?

An Independent Non-Profit Organization

The .NET Foundation is a 503(c).6 non-profit organization set up to support an innovative, commercially-friendly, open source ecosystem around an open source .NET platform.

.NET Foundation Projects

The .NET Foundation has a growing list of projects that benefit through this open source foundation with commercially friendly IP, copyright terms and licenses.

Supporting the .NET Developer Community

The .NET Foundation works with Microsoft and the broader industry to increase the exposure of open source projects in the .NET community and the .NET Foundation. The .NET Foundation provides access to these resources to projects and looks to promote the activities of our communities.

.NET News and Blogs

The Squishy Side of Open Source

A few months back my friend Keeley Hammond and I did a workshop for Women Who Code Portland called The Squishy Side of...

One Email Rule - Have a separate Inbox and an Inbox CC to reduce email stress. Guaranteed.

I've mentioned this tip before but once more for the folks in the back.

Surface Book 2 Developer Impressions and the Magic of USB-C

I recently got a updated laptop for work, a 15" Surface Book 2. It's quickly become my go-to machine,

.NET Framework February 2018 Security and Quality Rollup

Today, we are releasing the February 2018 Security and Quality Rollup. Security No new security fixes. See .

Announcing ASP.NET MVC 5.2.4, Web API 5.2.4, and Web Pages 3.2.4

Today we released stable packages for ASP.NET MVC 5.2.4, Web API 5.2.4, and Web Pages 3.2.4 on NuGet.

Two Lesser Known Tools for Local Azure Development

If you’re developing applications that target Azure services (e.g. Web Apps, Functions, Storage),

Events and Meetups

Ottawa IT Community

*Brown Bag Lunch, Bring your own lunch*How:

ONETUG - Orlando .NET User Group

Join us for one of our regular Nerd Dinners.

New York City F# User Group

Riccardo Terrell, seasoned software engineer,

Southeast Valley .NET User Group

• What we'll do Microsoft’s serverless platform abstracts all the servers and infrastructure from...

Edmonton .NET User Group

Please note our location is no longer downtown.

Chicago Azure Cloud Users Group

Join our Wednesday Webinar Series on Feb. 28th, 2018 at 1.00 pm - 1.30 pm CST Topic :

Triangle .NET User Group

The topic of this presentation is Anonymous Types in C#. We will discuss:

Metro Toronto .NET User Group

• What we'll do CI/CD and SQL Server & Migrating to VSTSTopic 1:


Webinar Link (For those out of the area or unable to join in person) Note:

A large and growing ecosystem




member projects


developers contributing


companies contributing

Why .NET?

  • Samsung is embracing .NET because it is a completely open source project.

  • ASP.NET Core is open source, that allows us to contribute back to it if we have any performance issues which Microsoft review and together we make a better product.

    Ben Adams, Illyriad Games
  • Being able to develop a vast amount of Xamarin code, most of it only once, that serves multiple platforms is a great efficiency benefit for years to come.

    Michele Ivy, UPS
  • Using the same-size server, we were able to go from 1,000 requests per second per node with Node.js to 20,000 requests per second with .NET Core.

    John-Daniel Trask, Raygun CEO

© 2018 .NET Foundation and Contributors.