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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 181k 37.7k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.2k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    C# 129k 7.6k

  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# 27.1k 4.4k

Repositories

Showing 10 of 7533 repositories
  • teams.ts Public

    a suite of packages used to build on the Teams Platform.

    microsoft/teams.ts’s past year of commit activity
    TypeScript 34 MIT 25 70 (1 issue needs help) 13 Updated Jan 31, 2026
  • qdk-ec Public
    microsoft/qdk-ec’s past year of commit activity
    Rust 9 MIT 1 0 1 Updated Jan 31, 2026
  • typescript-go Public

    Staging repo for development of native port of TypeScript

    microsoft/typescript-go’s past year of commit activity
    Go 23,915 Apache-2.0 813 195 (1 issue needs help) 67 Updated Jan 31, 2026
  • onnxruntime Public

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

    microsoft/onnxruntime’s past year of commit activity
    C++ 19,151 MIT 3,678 866 393 Updated Jan 31, 2026
  • PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    microsoft/PowerToys’s past year of commit activity
    C# 128,611 MIT 7,648 5,000+ (212 issues need help) 89 Updated Jan 31, 2026
  • Olive Public

    Olive: Simplify ML Model Finetuning, Conversion, Quantization, and Optimization for CPUs, GPUs and NPUs.

    microsoft/Olive’s past year of commit activity
    Python 2,244 MIT 272 18 3 Updated Jan 31, 2026
  • sbom-tool Public

    The SBOM tool is a highly scalable and enterprise ready tool to create SPDX 2.2 compatible SBOMs for any variety of artifacts.

    microsoft/sbom-tool’s past year of commit activity
    C# 1,970 MIT 190 46 (4 issues need help) 34 Updated Jan 31, 2026
  • DataFactory.MCP Public
    microsoft/DataFactory.MCP’s past year of commit activity
    C# 3 MIT 3 13 2 Updated Jan 31, 2026
  • DiskANN Public

    Graph-structured Indices for Scalable, Fast, Fresh and Filtered Approximate Nearest Neighbor Search

    microsoft/DiskANN’s past year of commit activity
    Rust 1,671 MIT 374 143 (10 issues need help) 81 Updated Jan 31, 2026
  • zerotrustassessment Public

    Repository for the Zero Trust Assessment project

    microsoft/zerotrustassessment’s past year of commit activity
    HTML 258 MIT 124 41 28 Updated Jan 31, 2026
View all repositories

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