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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 169k 31k

  2. TypeScript TypeScript Public

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

    TypeScript 103k 12.7k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 116k 6.8k

  4. terminal terminal Public

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

    C++ 97.4k 8.5k

  5. semantic-kernel semantic-kernel Public

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

    C# 23.5k 3.6k

Repositories

Showing 10 of 6698 repositories
  • semantic-kernel Public

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

    microsoft/semantic-kernel’s past year of commit activity
    C# 23,495 MIT 3,595 380 28 Updated Mar 13, 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 1,852 MIT 167 14 19 Updated Mar 13, 2025
  • OpenAPI.NET Public

    The OpenAPI.NET SDK contains a useful object model for OpenAPI documents in .NET along with common serializers to extract raw OpenAPI JSON and YAML documents from the model.

    microsoft/OpenAPI.NET’s past year of commit activity
    C# 1,467 MIT 248 98 (2 issues need help) 5 Updated Mar 13, 2025
  • fluentui Public

    Fluent UI web represents a collection of utilities, React components, and web components for building web applications.

    microsoft/fluentui’s past year of commit activity
    TypeScript 18,913 2,773 500 (7 issues need help) 181 Updated Mar 13, 2025
  • AL-Go Public

    The plug-and-play DevOps solution for Business Central app development on GitHub

    microsoft/AL-Go’s past year of commit activity
    PowerShell 332 MIT 131 96 (1 issue needs help) 7 Updated Mar 13, 2025
  • powerplatform-vscode Public

    The Power Platform VSCode extension makes it easy to manage Power Platform environments and allows the developer to create, build and deploy Power Platform solutions, packages and portals.

    microsoft/powerplatform-vscode’s past year of commit activity
    TypeScript 228 MIT 39 63 23 Updated Mar 13, 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 4,227 MIT 554 174 (14 issues need help) 50 Updated Mar 13, 2025
  • Teams-AdaptiveCards-Mobile Public
    microsoft/Teams-AdaptiveCards-Mobile’s past year of commit activity
    C++ 11 MIT 17 53 8 Updated Mar 13, 2025
  • vscode-cmake-tools Public

    CMake Tools provides a robust, convenient workflow for CMake projects in VS Code. It simplifies configurations with CMake presets, supports IntelliSense and built-in debugging for CMake scripts, and offers configurable tasks. Its customizable interface allows for efficient project control, while also simplifying test execution and monitoring.

    microsoft/vscode-cmake-tools’s past year of commit activity
    TypeScript 1,527 MIT 474 428 (42 issues need help) 5 Updated Mar 13, 2025
  • PowerToys Public

    Windows system utilities to maximize productivity

    microsoft/PowerToys’s past year of commit activity
    C# 116,160 MIT 6,848 5,000+ (176 issues need help) 79 Updated Mar 13, 2025
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