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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 179k 36.7k

  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# 26.8k 4.4k

Repositories

Showing 10 of 7437 repositories
  • pxt Public

    Microsoft MakeCode (PXT - Programming eXperience Toolkit)

    microsoft/pxt’s past year of commit activity
    TypeScript 2,247 MIT 609 211 (2 issues need help) 63 Updated Dec 10, 2025
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,117 MIT 1,480 0 96 Updated Dec 10, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 179,489 MIT 36,739 5,000+ (562 issues need help) 950 Updated Dec 10, 2025
  • playwright Public

    Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

    microsoft/playwright’s past year of commit activity
    TypeScript 80,075 Apache-2.0 4,902 546 8 Updated Dec 10, 2025
  • onnxruntime Public

    ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator

    microsoft/onnxruntime’s past year of commit activity
    C++ 18,632 MIT 3,590 840 358 Updated Dec 10, 2025
  • SynapseML Public

    Simple and Distributed Machine Learning

    microsoft/SynapseML’s past year of commit activity
    Scala 5,192 MIT 853 354 (10 issues need help) 62 Updated Dec 10, 2025
  • node-api-dotnet Public

    Advanced interoperability between .NET and JavaScript in the same process.

    microsoft/node-api-dotnet’s past year of commit activity
    C# 700 MIT 74 55 5 Updated Dec 10, 2025
  • dstoolkit-mlops-v2 Public

    This repository contains the basic repository structure for machine learning projects based on Azure technologies (Azure ML and Azure DevOps).

    microsoft/dstoolkit-mlops-v2’s past year of commit activity
    Python 29 16 26 5 Updated Dec 10, 2025
  • PAX Public

    Portable Audit eXporter (PAX) Solution: Enterprise-grade tools for Microsoft 365 audit logs analysis. Export and process Copilot and M365 apps usage data from multiple audit log sources.

    microsoft/PAX’s past year of commit activity
    PowerShell 3 MIT 0 0 0 Updated Dec 10, 2025
  • azurelinux Public

    Linux OS for Azure 1P services and edge appliances

    microsoft/azurelinux’s past year of commit activity
    RPM Spec 4,519 MIT 602 175 537 Updated Dec 10, 2025
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