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Open source projects and samples from Microsoft
README.md

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 7636 repositories
  • BotFramework-WebChat Public

    A highly-customizable web-based client for Azure Bot Services.

    microsoft/BotFramework-WebChat’s past year of commit activity
    HTML 1,774 MIT 1,607 471 34 Updated Mar 8, 2026
  • hve-core Public

    A refined collection of Hypervelocity Engineering components (instructions, prompts, agents, and skills) to start your project off right, or upgrade your existing projects to get the most out of all Copilots

    microsoft/hve-core’s past year of commit activity
    PowerShell 831 MIT 100 55 22 Updated Mar 8, 2026
  • 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 247 49 3 6 Updated Mar 8, 2026
  • airflow-providers-microsoft-fabric Public

    Repository containing the source code for the Microsoft Fabric provider for Airflow.

    microsoft/airflow-providers-microsoft-fabric’s past year of commit activity
    Python 8 MIT 4 0 3 Updated Mar 8, 2026
  • techworkshop-L300-secure-workload-migration-to-azure-windows-server---sql-server Public

    TechWorkshop L300: Secure workload migration to Azure - Windows Server & SQL Server – workshop content, labs, and facilitator assets.

    microsoft/techworkshop-L300-secure-workload-migration-to-azure-windows-server---sql-server’s past year of commit activity
    PowerShell 0 MIT 0 0 0 Updated Mar 8, 2026
  • kata-containers Public Forked from kata-containers/kata-containers

    Kata Containers is an open source project and community working to build a standard implementation of lightweight Virtual Machines (VMs) that feel and perform like containers, but provide the workload isolation and security advantages of VMs. https://katacontainers.io/

    microsoft/kata-containers’s past year of commit activity
    Rust 81 Apache-2.0 1,405 0 21 Updated Mar 8, 2026
  • injectorppforrust Public

    Injectorpp is a powerful tool designed to facilitate the writing of unit tests without the need to introduce traits solely for testing purposes. It streamlines the testing process by providing a seamless and efficient way to abstract dependencies, ensuring that your code remains clean and maintainable.

    microsoft/injectorppforrust’s past year of commit activity
    Rust 391 MIT 15 20 (2 issues need help) 0 Updated Mar 8, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,565 MIT 1,703 0 215 Updated Mar 8, 2026
  • agent-governance-toolkit Public

    AI Agent Governance Toolkit — Policy enforcement, zero-trust identity, execution sandboxing, and reliability engineering for autonomous AI agents. Covers 10/10 OWASP Agentic Top 10.

    microsoft/agent-governance-toolkit’s past year of commit activity
    Python 15 MIT 2 26 (1 issue needs help) 0 Updated Mar 8, 2026
  • CsWinRT Public

    C# language projection for the Windows Runtime

    microsoft/CsWinRT’s past year of commit activity
    C# 626 MIT 123 219 29 Updated Mar 8, 2026
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