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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 193k 44.1k

  2. TypeScript TypeScript Public

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

    Go 111k 15.5k

  3. PowerToys PowerToys Public

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

    C 139k 8.6k

  4. terminal terminal Public

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

    C++ 105k 9.6k

  5. semantic-kernel semantic-kernel Public

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

    C# 28.6k 4.8k

Repositories

Showing 10 of 8342 repositories
  • vscode Public

    Visual Studio Code

    microsoft/vscode's past year of commit activity
    TypeScript 193,364 MIT 44,074 5,000+ (470 issues need help) 2,736 Updated Oct 2, 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 2,393 MIT 318 34 42 Updated Oct 2, 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# 12,033 MIT 709 26 (11 issues need help) 31 Updated Oct 2, 2026
  • TypeScript Public

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

    microsoft/TypeScript's past year of commit activity
    Go 111,313 Apache-2.0 15,482 4,876 (778 issues need help) 181 Updated Oct 2, 2026
  • onnxruntime Public

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

    microsoft/onnxruntime's past year of commit activity
    C++ 21,981 MIT 4,270 898 875 Updated Oct 2, 2026
  • Agents-for-python Public

    This repository is for active development of the Microsoft 365 Agent SDK components for Python

    microsoft/Agents-for-python's past year of commit activity
    Python 212 MIT 91 16 17 Updated Oct 2, 2026
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps's past year of commit activity
    AL 689 MIT 469 248 449 Updated Oct 2, 2026
  • mssql-rs Public

    Repository for the TDS implementation in Rust.

    microsoft/mssql-rs's past year of commit activity
    Rust 55 MIT 15 40 31 Updated Oct 2, 2026
  • windows-rs Public

    Rust for Windows

    microsoft/windows-rs's past year of commit activity
    Rust 12,787 Apache-2.0 671 45 0 Updated Oct 2, 2026
  • litebox Public

    A security-focused library OS supporting kernel- and user-mode execution

    microsoft/litebox's past year of commit activity
    Rust 2,701 MIT 147 129 32 Updated Oct 2, 2026
View all repositories

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