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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 177k 35.4k

  2. TypeScript TypeScript Public

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

    TypeScript 106k 13k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    C# 124k 7.4k

  4. terminal terminal Public

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

    C++ 100k 8.8k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.4k 4.3k

Repositories

Showing 10 of 7177 repositories
  • rnx-kit Public

    Modern, scalable tools. Exceptional developer experience.

    microsoft/rnx-kit’s past year of commit activity
    TypeScript 1,667 MIT 109 46 (5 issues need help) 6 Updated Oct 6, 2025
  • azure-linux-image-tools Public
    microsoft/azure-linux-image-tools’s past year of commit activity
    Go 17 MIT 9 4 5 Updated Oct 6, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 177,282 MIT 35,367 5,000+ (449 issues need help) 793 Updated Oct 6, 2025
  • weston-mirror Public Forked from IcebergThings/weston

    Reference compositor for Wayland (mirror)

    microsoft/weston-mirror’s past year of commit activity
    C 44 211 0 2 Updated Oct 6, 2025
  • ApplicationInsights-dotnet Public

    ApplicationInsights-dotnet

    microsoft/ApplicationInsights-dotnet’s past year of commit activity
    C# 579 MIT 294 148 16 Updated Oct 6, 2025
  • winget-cli Public

    WinGet is the Windows Package Manager. This project includes a CLI (Command Line Interface), PowerShell modules, and a COM (Component Object Model) API (Application Programming Interface).

    microsoft/winget-cli’s past year of commit activity
    C++ 24,837 MIT 1,609 1,205 28 Updated Oct 6, 2025
  • vs-streamjsonrpc Public

    The StreamJsonRpc library offers JSON-RPC 2.0 over any .NET Stream, WebSocket, or Pipe. With bonus support for request cancellation, client proxy generation, and more.

    microsoft/vs-streamjsonrpc’s past year of commit activity
    C# 864 162 53 (1 issue needs help) 3 Updated Oct 6, 2025
  • kata-containers Public Forked from kata-containers/kata-containers

    Kata Containers is an open source project and community working to build a standard implementation of lightweight Virtual Machines (VMs) that feel and perform like containers, but provide the workload isolation and security advantages of VMs. https://katacontainers.io/

    microsoft/kata-containers’s past year of commit activity
    Rust 70 Apache-2.0 1,305 0 19 Updated Oct 6, 2025
  • vscode-docker-extensibility Public

    Docker for Visual Studio Code: Extensibility Model

    microsoft/vscode-docker-extensibility’s past year of commit activity
    TypeScript 14 MIT 8 2 1 Updated Oct 6, 2025
  • roosterjs Public

    roosterjs is a framework-independent javascript rich text editor.

    microsoft/roosterjs’s past year of commit activity
    TypeScript 1,282 176 49 3 Updated Oct 6, 2025
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