microsoft/referencesource

Source from the Microsoft .NET Reference Source that represent a subset of the .NET Framework

C#

3,454

53 commits

updated Oct 15, 2025

See the code

README

.NET Reference Source

If you landed here via redirect from https://referencesource.microsoft.com/ and this repo with .NET Framework reference sources does not meet your need please file an issue.

The referencesource repository contains sources from Microsoft .NET Reference Source that represent a subset of the .NET Framework. This subset contains similar functionality to the class libraries that are being developed in .NET Core. We intend to consult the referencesource repository as we develop .NET Core. It is also for the community to leverage to enable more scenarios for .NET developers.

Please note that the referencesource repository is read-only. See this blog post for the rationale.

This repository does not accept feature requests or bug reports. To submit those, you need to go elsewhere:

License

The files in this repository are licensed under the MIT license unless otherwise specified in the file header. If the file header only contains a copyright header (e.g., "Copyright (c) Microsoft Corporation. All rights reserved.", you can assume the associated file to be MIT-licensed.

microsoft/referencesource

Source from the Microsoft .NET Reference Source that represent a subset of the .NET Framework

C#

3,454

53 commits

updated Oct 15, 2025

See the code

README

.NET Reference Source

If you landed here via redirect from https://referencesource.microsoft.com/ and this repo with .NET Framework reference sources does not meet your need please file an issue.

The referencesource repository contains sources from Microsoft .NET Reference Source that represent a subset of the .NET Framework. This subset contains similar functionality to the class libraries that are being developed in .NET Core. We intend to consult the referencesource repository as we develop .NET Core. It is also for the community to leverage to enable more scenarios for .NET developers.

Please note that the referencesource repository is read-only. See this blog post for the rationale.

This repository does not accept feature requests or bug reports. To submit those, you need to go elsewhere:

License

The files in this repository are licensed under the MIT license unless otherwise specified in the file header. If the file header only contains a copyright header (e.g., "Copyright (c) Microsoft Corporation. All rights reserved.", you can assume the associated file to be MIT-licensed.

Project health

Overall

4.8/10

Maintained

0/10

Code review

6/10
OpenSSF Scorecard

Significant stargazers

(top 24 of 27)

Drew Noakes

604 followers · starred Jun 2025

Adam Sitnik

903 followers · starred Feb 2016

Enrico Sada

113 followers · starred Nov 2014

Erik Schierboom

599 followers · starred Nov 2014