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Open source projects and samples from Microsoft
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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 173k 32.9k

  2. TypeScript TypeScript Public

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

    TypeScript 105k 12.9k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 120k 7.1k

  4. terminal terminal Public

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

    C++ 98.5k 8.6k

  5. semantic-kernel semantic-kernel Public

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

    C# 25k 3.9k

Repositories

Showing 10 of 6895 repositories
  • superbenchmark Public

    A validation and profiling tool for AI infrastructure

    microsoft/superbenchmark’s past year of commit activity
    Python 314 MIT 68 10 9 Updated Jun 8, 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 4,344 MIT 577 162 (13 issues need help) 58 Updated Jun 8, 2025
  • sql-server-language-extensions Public

    language-extensions-sqlserver

    microsoft/sql-server-language-extensions’s past year of commit activity
    C++ 110 45 6 2 Updated Jun 8, 2025
  • xdp-for-windows Public

    XDP speeds up networking on Windows

    microsoft/xdp-for-windows’s past year of commit activity
    C 408 MIT 49 62 2 Updated Jun 8, 2025
  • mimalloc Public

    mimalloc is a compact general purpose allocator with excellent performance.

    microsoft/mimalloc’s past year of commit activity
    C 11,516 MIT 955 325 34 Updated Jun 8, 2025
  • onnxruntime Public

    ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator

    microsoft/onnxruntime’s past year of commit activity
    C++ 16,845 MIT 3,253 1,977 569 Updated Jun 8, 2025
  • azure-linux-image-tools Public
    microsoft/azure-linux-image-tools’s past year of commit activity
    Go 13 MIT 5 0 7 Updated Jun 8, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,425 MIT 5,121 954 122 Updated Jun 8, 2025
  • demikernel Public

    Kernel-Bypass LibOS Architecture

    microsoft/demikernel’s past year of commit activity
    Rust 1,146 MIT 133 86 (6 issues need help) 9 Updated Jun 8, 2025
  • SPTAG Public

    A distributed approximate nearest neighborhood search (ANN) library which provides a high quality vector index build, search and distributed online serving toolkits for large scale vector search scenario.

    microsoft/SPTAG’s past year of commit activity
    C++ 4,908 MIT 591 115 (1 issue needs help) 20 Updated Jun 8, 2025
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