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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 171k 32.2k

  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++ 98.1k 8.6k

  5. semantic-kernel semantic-kernel Public

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

    C# 24.4k 3.8k

Repositories

Showing 10 of 6815 repositories
  • Agents-for-net Public

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

    microsoft/Agents-for-net’s past year of commit activity
    C# 83 MIT 48 19 10 Updated May 12, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,337 MIT 5,038 921 241 Updated May 12, 2025
  • Deploy-Your-AI-Application-In-Production Public

    A deployment of a secure, extensible and integrated environment for running AI Foundry workloads in Production. It simplifies the process of including essential Azure services necessary to run mission-critical AI applications and adhere to Microsoft Well Architected Framework recommendations.

    microsoft/Deploy-Your-AI-Application-In-Production’s past year of commit activity
    Bicep 19 MIT 16 0 1 Updated May 12, 2025
  • Power-CAT-Copilot-Studio-Kit Public
    microsoft/Power-CAT-Copilot-Studio-Kit’s past year of commit activity
    JavaScript 141 MIT 23 22 (5 issues need help) 1 Updated May 12, 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.

    microsoft/RD-Agent’s past year of commit activity
    Python 4,339 MIT 382 22 28 Updated May 12, 2025
  • aurora Public

    Implementation of the Aurora model for Earth system forecasting

    microsoft/aurora’s past year of commit activity
    Python 340 54 21 1 Updated May 12, 2025
  • AzureTRE Public

    An accelerator to help organizations build Trusted Research Environments on Azure.

    microsoft/AzureTRE’s past year of commit activity
    Python 204 MIT 162 268 (5 issues need help) 15 Updated May 12, 2025
  • PowerApps-TestEngine Public
    microsoft/PowerApps-TestEngine’s past year of commit activity
    C# 129 MIT 42 159 20 Updated May 12, 2025
  • msquic Public

    Cross-platform, C implementation of the IETF QUIC protocol, exposed to C, C++, C# and Rust.

    microsoft/msquic’s past year of commit activity
    C 4,312 MIT 566 157 (14 issues need help) 47 Updated May 12, 2025
  • PowerToys Public

    Windows system utilities to maximize productivity

    microsoft/PowerToys’s past year of commit activity
    C# 118,417 MIT 6,993 5,000+ (212 issues need help) 73 Updated May 12, 2025
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