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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 182k 38.4k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.3k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that supercharge productivity and customization on Windows

    C# 130k 7.8k

  4. terminal terminal Public

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

    C++ 102k 9.1k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.4k 4.5k

Repositories

Showing 10 of 7637 repositories
  • 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 19,872 2,869 393 (6 issues need help) 275 Updated Mar 9, 2026
  • BitNet Public

    Official inference framework for 1-bit LLMs

    microsoft/BitNet’s past year of commit activity
    Python 28,716 MIT 2,372 153 62 Updated Mar 9, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,574 MIT 1,706 0 223 Updated Mar 9, 2026
  • content-generation-solution-accelerator Public

    Accelerate marketing content creation with an AI-powered multi-agent system using Microsoft Foundry.

    microsoft/content-generation-solution-accelerator’s past year of commit activity
    Python 203 MIT 168 2 14 Updated Mar 9, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 182,476 MIT 38,378 5,000+ (525 issues need help) 1,232 Updated Mar 9, 2026
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps’s past year of commit activity
    AL 545 MIT 350 80 82 Updated Mar 9, 2026
  • testfx Public

    This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

    microsoft/testfx’s past year of commit activity
    C# 991 MIT 291 196 31 Updated Mar 9, 2026
  • azure-tools-for-java Public

    Azure tools for Java, including Azure Toolkits for Eclipse, IntelliJ and related projects.

    microsoft/azure-tools-for-java’s past year of commit activity
    Java 255 178 478 8 Updated Mar 9, 2026
  • oxidizer Public

    Oxidizer is a platform for Rust service development which bridges the gaps in the crate ecosystem to deliver a turn-key solution to enable the efficient creation of high-scale high-availability and high-performance services in Rust.

    microsoft/oxidizer’s past year of commit activity
    Rust 62 MIT 14 14 8 Updated Mar 9, 2026
  • Conversation-Knowledge-Mining-Solution-Accelerator Public

    This solution accelerator leverages Microsoft Foundry, Azure Content Understanding, Azure OpenAI Service, and Foundry IQ to enable organizations to derive insights from volumes of conversational data using generative AI. It offers key phrase extraction, topic modeling, and interactive chat experiences through an intuitive web interface.

    microsoft/Conversation-Knowledge-Mining-Solution-Accelerator’s past year of commit activity
    Python 425 MIT 247 1 5 Updated Mar 9, 2026
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