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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 170k 31.8k

  2. TypeScript TypeScript Public

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

    TypeScript 104k 12.8k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 118k 7k

  4. terminal terminal Public

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

    C++ 97.8k 8.5k

  5. semantic-kernel semantic-kernel Public

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

    C# 24.2k 3.8k

Repositories

Showing 10 of 6778 repositories
  • hce-classification Public

    Code to implement the hierarchical cross-entropy loss for single-cell annotation models

    microsoft/hce-classification’s past year of commit activity
    Python 1 MIT 1 0 1 Updated Apr 25, 2025
  • Teams-AdaptiveCards-Mobile Public
    microsoft/Teams-AdaptiveCards-Mobile’s past year of commit activity
    C++ 12 MIT 18 55 9 Updated Apr 25, 2025
  • Build-your-own-copilot-Solution-Accelerator Public

    Solution Accelerator to show how to build your own copilot

    microsoft/Build-your-own-copilot-Solution-Accelerator’s past year of commit activity
    TypeScript 179 MIT 105 0 20 Updated Apr 25, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 170,401 MIT 31,780 5,000+ (400 issues need help) 536 Updated Apr 25, 2025
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 16,378 MIT 3,172 2,646 558 Updated Apr 25, 2025
  • Build25-LAB304 Public

    Microsoft Build 2025 LAB304 - Playwright End-to-End testing

    microsoft/Build25-LAB304’s past year of commit activity
    JavaScript 0 MIT 0 0 1 Updated Apr 25, 2025
  • omnichannel-chat-widget Public

    Omnichannel Live Chat Widget UI Components offers a re-usable component-based library to help create a custom chat widget that can be connected to the Dynamics 365 Customer Service experience.

    microsoft/omnichannel-chat-widget’s past year of commit activity
    TypeScript 53 MIT 49 16 14 Updated Apr 25, 2025
  • confidential-sidecar-containers Public

    This is a collection of sidecar containers that can be incorporated within confidential container groups on Azure Container Instances.

    microsoft/confidential-sidecar-containers’s past year of commit activity
    Go 32 18 11 2 Updated Apr 25, 2025
  • genaiscript Public

    Automatable GenAI Scripting

    microsoft/genaiscript’s past year of commit activity
    TypeScript 2,534 MIT 174 85 (2 issues need help) 2 Updated Apr 25, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,284 MIT 5,003 889 167 Updated Apr 25, 2025
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