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Open source projects and samples from Microsoft
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Open Source at Microsoft

Get Involved

Right now, open communities are building amazing software together, and there are excellent "good first issue" opportunities, if you're looking to get involved.

Visit opensource.microsoft.com to learn more!

Microsoft projects adopt the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ.

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  1. vscode vscode Public

    Visual Studio Code

    TypeScript 194k 44.9k

  2. TypeScript TypeScript Public

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

    Go 112k 16k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that supercharge productivity and customization on Windows

    C 140k 8.6k

  4. terminal terminal Public

    The new Windows Terminal and the original Windows console host, all in the same place!

    C++ 105k 9.7k

  5. semantic-kernel semantic-kernel Public

    Integrate cutting-edge LLM technology quickly and easily into your apps

    C# 28.7k 4.8k

Repositories

Showing 10 of 8397 repositories
  • fhir-server Public

    A service that implements the FHIR standard

    microsoft/fhir-server's past year of commit activity
    TSQL 1,390 MIT 598 97 (1 issue needs help) 72 Updated Oct 26, 2026
  • PyRIT Public

    The Python Risk Identification Tool for generative AI (PyRIT) is an open source framework built to empower security professionals and engineers to proactively identify risks in generative AI systems.

    microsoft/PyRIT's past year of commit activity
    Python 4,689 MIT 981 80 (14 issues need help) 55 Updated Oct 26, 2026
  • tale-suite Public

    Text Adventure Learning Environment Suite - Benchmark to evaluate language models on interactive text environments.

    microsoft/tale-suite's past year of commit activity
    Jupyter Notebook 33 MIT 8 1 0 Updated Oct 26, 2026
  • XBOX-Godot-NetRumble Public

    XBOX Godot NetRumble - a Multiplayer Game Sample demonstrating Microsoft GDK, PlayFab and GameInput implementation for XBOX on PC and XBOX Series X|S in Godot.

    microsoft/XBOX-Godot-NetRumble's past year of commit activity
    GDScript 3 MIT 2 6 0 Updated Oct 26, 2026
  • DirectXShaderCompiler Public

    This repo hosts the source for the DirectX Shader Compiler which is based on LLVM/Clang.

    microsoft/DirectXShaderCompiler's past year of commit activity
    C++ 3,675 911 643 130 Updated Oct 26, 2026
  • win32metadata Public

    Tooling to generate metadata for Win32 APIs in the Windows SDK.

    microsoft/win32metadata's past year of commit activity
    C++ 1,506 157 178 (2 issues need help) 27 Updated Oct 26, 2026
  • PSRule Public

    Validate infrastructure as code (IaC) and objects using PowerShell rules.

    microsoft/PSRule's past year of commit activity
    C# 474 MIT 66 77 (2 issues need help) 19 Updated Oct 26, 2026
  • SimpleL7Proxy Public

    Container based solution to do performance based proxy requests to APIM backends.

    microsoft/SimpleL7Proxy's past year of commit activity
    C# 21 MIT 11 11 4 Updated Oct 26, 2026
  • XBOX-GDK-dotnet Public

    Write your XBOX game in C#, not in P/Invoke. The .NET projection of the Microsoft GDK: Gaming Runtime, XBOX Services and PlayFab as Tasks, events and exceptions. NativeAOT-ready on .NET 8, .NET 10 and netstandard2.0.

    microsoft/XBOX-GDK-dotnet's past year of commit activity
    C# 3 MIT 1 0 1 Updated Oct 26, 2026
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps's past year of commit activity
    AL 716 MIT 482 287 523 Updated Oct 26, 2026
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