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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 183k 38.4k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.3k

  3. PowerToys PowerToys Public

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

    C# 130k 7.8k

  4. terminal terminal Public

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

    C++ 102k 9.1k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.4k 4.5k

Repositories

Showing 10 of 7645 repositories
  • azurelinux Public

    Linux OS for Azure 1P services and edge appliances

    microsoft/azurelinux’s past year of commit activity
    RPM Spec 4,588 MIT 606 181 515 Updated Mar 10, 2026
  • agent-framework Public

    A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

    microsoft/agent-framework’s past year of commit activity
    Python 7,785 MIT 1,287 588 137 Updated Mar 10, 2026
  • kiota Public

    OpenAPI based HTTP Client code generator

    microsoft/kiota’s past year of commit activity
    C# 3,673 MIT 301 149 (27 issues need help) 32 Updated Mar 10, 2026
  • oxidizer Public

    Oxidizer is a platform for Rust service development which bridges the gaps in the crate ecosystem to deliver a turn-key solution to enable the efficient creation of high-scale high-availability and high-performance services in Rust.

    microsoft/oxidizer’s past year of commit activity
    Rust 62 MIT 14 14 9 Updated Mar 10, 2026
  • tas-client Public
    microsoft/tas-client’s past year of commit activity
    TypeScript 3 MIT 6 3 7 Updated Mar 10, 2026
  • service-fabric-dotnet Public

    Reliable Services and Reliable Actors are Service Fabric application frameworks for building highly-scalable distributed cloud applications.

    microsoft/service-fabric-dotnet’s past year of commit activity
    C# 273 113 39 6 Updated Mar 10, 2026
  • mwkorea Public

    mwkorea blog storage

    microsoft/mwkorea’s past year of commit activity
    SCSS 2 1 1 0 Updated Mar 10, 2026
  • fhir-server Public

    A service that implements the FHIR standard

    microsoft/fhir-server’s past year of commit activity
    TSQL 1,339 MIT 575 89 (2 issues need help) 54 Updated Mar 10, 2026
  • fluentui Public

    Fluent UI web represents a collection of utilities, React components, and web components for building web applications.

    microsoft/fluentui’s past year of commit activity
    TypeScript 19,869 2,868 394 (6 issues need help) 276 Updated Mar 10, 2026
  • WinUI-Gallery Public

    This app demonstrates the controls available in WinUI and the Fluent Design System.

    microsoft/WinUI-Gallery’s past year of commit activity
    C# 3,417 MIT 716 33 (4 issues need help) 2 Updated Mar 10, 2026
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