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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 36.5k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.1k

  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 8.9k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.7k 4.4k

Repositories

Showing 10 of 7415 repositories
  • finnts Public

    Microsoft Finance Time Series Forecasting Framework (FinnTS) is a forecasting package that utilizes cutting-edge time series forecasting and parallelization on the cloud to produce accurate forecasts for financial data.

    microsoft/finnts’s past year of commit activity
    R 230 48 3 5 Updated Nov 28, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,928 MIT 5,657 1,052 475 Updated Nov 28, 2025
  • vscode-react-native Public

    VSCode extension for React Native - supports debugging and editor integration

    microsoft/vscode-react-native’s past year of commit activity
    TypeScript 2,709 279 7 2 Updated Nov 28, 2025
  • graphitation Public

    GraphQL tooling & runtime support needed for MS Teams and beyond

    microsoft/graphitation’s past year of commit activity
    TypeScript 147 MIT 46 28 26 Updated Nov 28, 2025
  • CsWinRT Public

    C# language projection for the Windows Runtime

    microsoft/CsWinRT’s past year of commit activity
    C# 616 MIT 121 214 16 Updated Nov 28, 2025
  • MLOS Public

    MLOS is a project to enable autotuning for systems.

    microsoft/MLOS’s past year of commit activity
    Python 167 MIT 75 97 (3 issues need help) 22 Updated Nov 28, 2025
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps’s past year of commit activity
    AL 497 MIT 289 70 46 Updated Nov 28, 2025
  • ltp-megatron-lm Public

    LTP: Megatron-LM component

    microsoft/ltp-megatron-lm’s past year of commit activity
    Python 3 1 0 8 Updated Nov 28, 2025
  • bcsamples-bingmaps.pte Public

    Sample Per Tenant Extension, implementing an integration with Bing Maps inside Business Central.

    microsoft/bcsamples-bingmaps.pte’s past year of commit activity
    AL 22 MIT 16 0 6 Updated Nov 28, 2025
  • AOCoptimizer.jl Public

    Optimization solver backend for analog optical computer

    microsoft/AOCoptimizer.jl’s past year of commit activity
    Julia 7 MIT 3 1 1 Updated Nov 28, 2025
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