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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 Public

    Visual Studio Code

    TypeScript 170k 31.6k

  2. TypeScript Public

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

    TypeScript 104k 12.8k

  3. PowerToys Public

    Windows system utilities to maximize productivity

    C# 117k 6.9k

  4. terminal Public

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

    C++ 97.7k 8.5k

  5. semantic-kernel Public

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

    C# 24.1k 3.7k

Repositories

Showing 10 of 6758 repositories
  • PowerToys Public

    Windows system utilities to maximize productivity

    C# 117,443 MIT 6,942 5,000+ (195 issues need help) 76 Updated Apr 18, 2025
  • WindowsAppSDK Public

    The Windows App SDK empowers all Windows desktop apps with modern Windows UI, APIs, and platform features, including back-compat support, shipped via NuGet.

    C++ 3,982 MIT 348 450 28 Updated Apr 18, 2025
  • react-native-windows Public

    A framework for building native Windows apps with React.

    C++ 16,713 1,158 678 (10 issues need help) 41 Updated Apr 18, 2025
  • RD-Agent Public

    Research and development (R&D) is crucial for the enhancement of industrial productivity, especially in the AI era, where the core aspects of R&D are mainly focused on data and models. We are committed to automating these high-value generic R&D processes through our open source R&D automation tool RD-Agent, which lets AI drive data-driven AI.

    Python 4,157 MIT 354 23 22 Updated Apr 18, 2025
  • FeatureManagement-JavaScript Public

    This library provides standardized APIs for enabling feature flags within JavaScript applications. Utilize this library to secure a consistent experience when developing applications that use patterns such as beta access, rollout, dark deployments, and more.

    TypeScript 13 MIT 3 8 2 Updated Apr 18, 2025
  • playwright Public

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

    TypeScript 71,782 Apache-2.0 4,077 765 15 Updated Apr 18, 2025
  • documentdb Public

    DocumentDB is the open-source engine powering vCore-based Azure Cosmos DB for MongoDB. It offers a native implementation of document-oriented NoSQL database, enabling seamless CRUD operations on BSON data types within a PostgreSQL framework.

    C 1,611 MIT 81 26 (1 issue needs help) 5 Updated Apr 18, 2025
  • vscode-azureresourcegroups Public

    VS Code extension for managing Azure resources.

    TypeScript 61 MIT 40 122 3 Updated Apr 18, 2025
  • onnxruntime Public

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

    C++ 16,294 MIT 3,161 2,628 567 Updated Apr 18, 2025
  • autogen Public

    A programming framework for agentic AI 🤖 PyPi: autogen-agentchat Discord: https://aka.ms/autogen-discord Office Hour: https://aka.ms/autogen-officehour

    Python 43,335 CC-BY-4.0 6,512 488 (29 issues need help) 44 Updated Apr 18, 2025
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