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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 168k 30.7k

  2. TypeScript TypeScript Public

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

    TypeScript 102k 12.7k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 115k 6.8k

  4. terminal terminal Public

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

    C++ 97.1k 8.5k

  5. semantic-kernel semantic-kernel Public

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

    C# 23.2k 3.5k

Repositories

Showing 10 of 6660 repositories
  • testfx Public

    This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

    microsoft/testfx’s past year of commit activity
    C# 847 MIT 266 195 17 Updated Feb 23, 2025
  • fluentui-blazor Public

    Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications

    microsoft/fluentui-blazor’s past year of commit activity
    C# 4,118 MIT 405 37 5 Updated Feb 23, 2025
  • durabletask-dotnet Public

    Out-of-process .NET SDK for the Durable Task Framework

    microsoft/durabletask-dotnet’s past year of commit activity
    C# 129 MIT 37 68 (1 issue needs help) 15 Updated Feb 23, 2025
  • SeerAttention Public

    SeerAttention: Learning Intrinsic Sparse Attention in Your LLMs

    microsoft/SeerAttention’s past year of commit activity
    Python 56 MIT 2 0 0 Updated Feb 23, 2025
  • onnxruntime Public

    ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator

    microsoft/onnxruntime’s past year of commit activity
    C++ 15,702 MIT 3,055 2,538 543 Updated Feb 23, 2025
  • Magma Public

    Magma: A Foundation Model for Multimodal AI Agents

    microsoft/Magma’s past year of commit activity
    Python 439 MIT 14 1 0 Updated Feb 23, 2025
  • terraform-provider-fabric Public

    Terraform Provider for Microsoft Fabric

    microsoft/terraform-provider-fabric’s past year of commit activity
    Go 38 MPL-2.0 9 16 4 Updated Feb 23, 2025
  • azurelinux Public

    Linux OS for Azure 1P services and edge appliances

    microsoft/azurelinux’s past year of commit activity
    RPM Spec 4,399 MIT 568 146 799 Updated Feb 23, 2025
  • mu_rust_pi Public

    Platform Initialization (PI) Specification Definitions and Support Code

    microsoft/mu_rust_pi’s past year of commit activity
    Rust 3 12 3 1 Updated Feb 23, 2025
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 114 MIT 28 3 (1 issue needs help) 1 Updated Feb 23, 2025
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