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Open source projects and samples from Microsoft
README.md

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 193k 42.5k

  2. TypeScript TypeScript Public

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

    Go 111k 14.2k

  3. PowerToys PowerToys Public

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

    C 139k 8.6k

  4. terminal terminal Public

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

    C++ 105k 9.6k

  5. semantic-kernel semantic-kernel Public

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

    C# 28.6k 4.8k

Repositories

Showing 10 of 8309 repositories
  • mxc Public

    Policy-driven, layered isolation and containment

    microsoft/mxc's past year of commit activity
    Rust 1,339 MIT 78 60 28 Updated Sep 17, 2026
  • aspire-samples Public

    Browse the sample apps demonstrating Aspire integration across C#, JavaScript, TypeScript, Python, Go, containers, databases, cloud, AI, and observability scenarios.

    microsoft/aspire-samples's past year of commit activity
    C# 1,191 MIT 345 87 32 Updated Sep 17, 2026
  • vscode-mssql Public

    Visual Studio Code SQL Server extension.

    microsoft/vscode-mssql's past year of commit activity
    TypeScript 1,904 609 188 18 Updated Sep 17, 2026
  • microsoft-ui-reactor Public

    Reactor is an experimental set of extensions to WinUI

    microsoft/microsoft-ui-reactor's past year of commit activity
    C# 645 MIT 54 70 14 Updated Sep 17, 2026
  • microsoft-ui-xaml Public

    WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

    microsoft/microsoft-ui-xaml's past year of commit activity
    C++ 8,431 MIT 941 2,188 (18 issues need help) 135 Updated Sep 17, 2026
  • mu_basecore Public

    Project Mu BaseCore

    microsoft/mu_basecore's past year of commit activity
    C 290 187 11 5 Updated Sep 17, 2026
  • simplechat Public

    Secure AI conversations with documents, video, audio, and more. Personal workspaces for focused context, group spaces for shared insight. Classify docs, reuse prompts, and extend with modular features.

    microsoft/simplechat's past year of commit activity
    Python 154 116 258 5 Updated Sep 17, 2026
  • typespec Public
    microsoft/typespec's past year of commit activity
    Java 5,861 MIT 395 1,005 (2 issues need help) 58 Updated Sep 17, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs's past year of commit activity
    11,087 MIT 9,645 1,303 2,476 Updated Sep 17, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode's past year of commit activity
    TypeScript 192,641 MIT 42,522 5,000+ (473 issues need help) 2,681 Updated Sep 17, 2026
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