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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 178k 35.8k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.1k

  3. PowerToys PowerToys Public

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

    C# 125k 7.4k

  4. terminal terminal Public

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

    C++ 101k 8.9k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.5k 4.3k

Repositories

Showing 10 of 7265 repositories
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps’s past year of commit activity
    AL 476 MIT 264 49 56 Updated Oct 26, 2025
  • lisa Public

    LISA is developed and maintained by Microsoft, to empower Linux validation.

    microsoft/lisa’s past year of commit activity
    Python 313 MIT 219 33 (3 issues need help) 33 Updated Oct 26, 2025
  • azure-tools-for-java Public

    Azure tools for Java, including Azure Toolkits for Eclipse, IntelliJ and related projects.

    microsoft/azure-tools-for-java’s past year of commit activity
    Java 253 177 777 9 Updated Oct 26, 2025
  • AzureLinuxVulnerabilityData Public

    Contains a regularly published and updated vulnerability database for Vulnerability Monitoring.

    microsoft/AzureLinuxVulnerabilityData’s past year of commit activity
    39 MIT 16 0 0 Updated Oct 26, 2025
  • msstore-cli Public

    Microsoft Store CLI

    microsoft/msstore-cli’s past year of commit activity
    C# 93 MIT 15 13 2 Updated Oct 26, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 177,899 MIT 35,767 5,000+ (441 issues need help) 842 Updated Oct 26, 2025
  • fluentui-charting-contrib Public

    Contributor tools and guides for fluentui charting library

    microsoft/fluentui-charting-contrib’s past year of commit activity
    TypeScript 20 MIT 13 2 14 Updated Oct 26, 2025
  • react-native-windows Public

    A framework for building native Windows apps with React.

    microsoft/react-native-windows’s past year of commit activity
    C++ 17,050 1,178 700 (14 issues need help) 45 Updated Oct 26, 2025
  • ppcc25-cc-masterclass Public
    microsoft/ppcc25-cc-masterclass’s past year of commit activity
    2 MIT 0 0 0 Updated Oct 26, 2025
  • 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# 950 MIT 287 220 37 Updated Oct 26, 2025
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