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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 180k 36.9k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.2k

  3. PowerToys PowerToys Public

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

    C# 126k 7.5k

  4. terminal terminal Public

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

    C++ 101k 9k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.9k 4.4k

Repositories

Showing 10 of 7439 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# 965 MIT 290 219 30 Updated Dec 15, 2025
  • go Public

    The Microsoft build of Go is a modified version of Go that can build FIPS compliant applications that satisfy internal Microsoft policies.

    microsoft/go’s past year of commit activity
    Go 405 BSD-3-Clause 38 138 5 Updated Dec 15, 2025
  • mscclpp Public

    MSCCL++: A GPU-driven communication stack for scalable AI applications

    microsoft/mscclpp’s past year of commit activity
    C++ 443 MIT 77 11 24 Updated Dec 15, 2025
  • agent-lightning Public

    The absolute trainer to light up AI agents.

    microsoft/agent-lightning’s past year of commit activity
    Python 9,627 MIT 778 62 (14 issues need help) 28 Updated Dec 15, 2025
  • ComplianceUtility Public

    The 'Compliance Utility' is a powerful tool that helps troubleshoot and diagnose sensitivity labels, policies, settings and more. Whether you need to fix issues or reset configurations, this tool has you covered.

    microsoft/ComplianceUtility’s past year of commit activity
    PowerShell 35 MIT 5 0 0 Updated Dec 15, 2025
  • azure-pipelines-tasks Public

    Tasks for Azure Pipelines

    microsoft/azure-pipelines-tasks’s past year of commit activity
    TypeScript 3,604 MIT 2,678 273 (22 issues need help) 261 Updated Dec 15, 2025
  • document-generation-solution-accelerator Public

    Document Generation Solution Accelerator using Azure OpenAI Service and Azure AI Search.

    microsoft/document-generation-solution-accelerator’s past year of commit activity
    TypeScript 167 MIT 152 2 5 Updated Dec 15, 2025
  • Comparative-Analysis-for-Sustainability-Solution-Accelerator Public

    This solution accelerator enables companies to detect compliance gaps, benchmark against their peers, and generate action plans to ensure they’re on track to meet their sustainability goals

    microsoft/Comparative-Analysis-for-Sustainability-Solution-Accelerator’s past year of commit activity
    C# 14 MIT 4 1 6 Updated Dec 15, 2025
  • vscode-websearchforcopilot Public
    microsoft/vscode-websearchforcopilot’s past year of commit activity
    TypeScript 53 MIT 14 24 1 Updated Dec 15, 2025
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,134 MIT 1,487 0 110 Updated Dec 15, 2025
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