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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 175k 34k

  2. TypeScript TypeScript Public

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

    TypeScript 105k 12.9k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 121k 7.2k

  4. terminal terminal Public

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

    C++ 99k 8.7k

  5. semantic-kernel semantic-kernel Public

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

    C# 25.6k 4.1k

Repositories

Showing 10 of 6984 repositories
  • scFM-dataselection Public

    Investigating the role of pre-training dataset size and diversity on the performance of single-cell foundation models

    microsoft/scFM-dataselection’s past year of commit activity
    Jupyter Notebook 7 MIT 3 0 12 Updated Jul 28, 2025
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 7,936 MIT 947 0 35 Updated Jul 28, 2025
  • Agents-for-python Public

    This repository is for active development of the Microsoft 365 Agent SDK components for Python

    microsoft/Agents-for-python’s past year of commit activity
    Python 49 MIT 22 26 0 Updated Jul 28, 2025
  • debug-gym Public

    A Text-Based Environment for Interactive Debugging

    microsoft/debug-gym’s past year of commit activity
    Python 242 MIT 22 2 5 Updated Jul 28, 2025
  • vscode-azurefunctions Public

    Azure Functions extension for VS Code

    microsoft/vscode-azurefunctions’s past year of commit activity
    TypeScript 300 MIT 142 413 10 Updated Jul 28, 2025
  • mcp-for-beginners Public

    This open-source curriculum introduces the fundamentals of Model Context Protocol (MCP) through real-world, cross-language examples in .NET, Java, TypeScript, JavaScript, and Python. Designed for developers, it focuses on practical techniques for building modular, scalable, and secure AI workflows from session setup to service orchestration.

    microsoft/mcp-for-beginners’s past year of commit activity
    Python 5,659 MIT 1,554 2 2 Updated Jul 28, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 175,079 MIT 34,002 5,000+ (429 issues need help) 640 Updated Jul 28, 2025
  • FluidFramework Public

    Library for building distributed, real-time collaborative web applications

    microsoft/FluidFramework’s past year of commit activity
    TypeScript 4,847 MIT 553 22 67 Updated Jul 28, 2025
  • azure-linux-image-tools Public
    microsoft/azure-linux-image-tools’s past year of commit activity
    Go 15 MIT 7 5 6 Updated Jul 28, 2025
  • TypeAgent Public

    Sample code that explores an architecture for using language models to build a personal agent that can work with application agents.

    microsoft/TypeAgent’s past year of commit activity
    TypeScript 411 MIT 65 1 0 Updated Jul 28, 2025
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