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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 184k 39.3k

  2. TypeScript TypeScript Public

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

    TypeScript 109k 13.4k

  3. PowerToys PowerToys Public

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

    C# 132k 7.9k

  4. terminal terminal Public

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

    C++ 103k 9.2k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.8k 4.6k

Repositories

Showing 10 of 7781 repositories
  • typescript-go Public

    Staging repo for development of native port of TypeScript

    microsoft/typescript-go’s past year of commit activity
    Go 24,841 Apache-2.0 896 93 (1 issue needs help) 59 Updated Apr 21, 2026
  • aspire Public

    Aspire is the tool for code-first, extensible, observable dev and deploy.

    microsoft/aspire’s past year of commit activity
    C# 5,839 MIT 867 1,730 (4 issues need help) 144 Updated Apr 21, 2026
  • mcp Public

    Catalog of official Microsoft MCP (Model Context Protocol) server implementations for AI-powered data access and tool integration

    microsoft/mcp’s past year of commit activity
    C# 3,003 MIT 458 207 (15 issues need help) 86 Updated Apr 21, 2026
  • garnet Public

    Garnet is a remote cache-store from Microsoft Research that offers strong performance (throughput and latency), scalability, storage, recovery, cluster sharding, key migration, and replication features. Garnet can work with existing Redis clients.

    microsoft/garnet’s past year of commit activity
    C# 11,795 MIT 652 25 (13 issues need help) 28 Updated Apr 21, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    10,498 MIT 6,748 1,157 332 Updated Apr 21, 2026
  • qdk-chemistry Public

    A high-performance toolkit for quantum and classical chemistry calculations.

    microsoft/qdk-chemistry’s past year of commit activity
    C++ 43 MIT 1 28 16 Updated Apr 21, 2026
  • openvmm Public

    Home of OpenVMM and OpenHCL

    microsoft/openvmm’s past year of commit activity
    Rust 1,828 MIT 183 209 (6 issues need help) 100 Updated Apr 21, 2026
  • SdnDiagnostics Public

    SdnDiagnostics is a PowerShell module that is designed to simplify the diagnostic troubleshooting and data collection process when troubleshooting issues related to Microsoft Software Defined Network.

    microsoft/SdnDiagnostics’s past year of commit activity
    PowerShell 34 MIT 4 17 7 Updated Apr 21, 2026
  • winget-cli Public

    WinGet is the Windows Package Manager. This project includes a CLI (Command Line Interface), PowerShell modules, and a COM (Component Object Model) API (Application Programming Interface).

    microsoft/winget-cli’s past year of commit activity
    C++ 25,726 MIT 1,720 1,242 22 Updated Apr 21, 2026
  • windows-rs Public

    Rust for Windows

    microsoft/windows-rs’s past year of commit activity
    Rust 12,120 Apache-2.0 611 40 4 Updated Apr 21, 2026
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