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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 Public

    Visual Studio Code

    TypeScript 170k 31.7k

  2. TypeScript Public

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

    TypeScript 104k 12.8k

  3. PowerToys Public

    Windows system utilities to maximize productivity

    C# 118k 6.9k

  4. terminal Public

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

    C++ 97.8k 8.5k

  5. semantic-kernel Public

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

    C# 24.1k 3.7k

Repositories

Showing 10 of 6764 repositories
  • onnxruntime Public

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

    C++ 16,334 MIT 3,166 2,641 565 Updated Apr 22, 2025
  • mscclpp Public

    MSCCL++: A GPU-driven communication stack for scalable AI applications

    C++ 342 MIT 48 23 20 Updated Apr 22, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    PowerShell 9,273 MIT 4,993 895 130 Updated Apr 22, 2025
  • verified-storage Public

    Storage systems with verified correctness properties

    Rust 44 MIT 15 0 1 Updated Apr 22, 2025
  • Multi-Agent-Custom-Automation-Engine-Solution-Accelerator Public

    The Multi-Agent Custom Automation Engine Solution Accelerator is an AI-driven orchestration system that manages a group of AI agents to accomplish tasks based on user input. Powered by AutoGen, Azure OpenAI, Cosmos, and infrastructure services, it provides a ready to go application to use as a reference, allowing you to hit the ground running.

    Python 180 MIT 98 0 3 Updated Apr 22, 2025
  • 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.

    C# 10,986 MIT 568 16 (11 issues need help) 13 Updated Apr 22, 2025
  • qsharp Public

    Azure Quantum Development Kit, including the Q# programming language, resource estimator, and Quantum Katas

    Rust 675 MIT 121 142 (1 issue needs help) 10 Updated Apr 22, 2025
  • Agents-for-net Public

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

    C# 78 MIT 40 16 10 Updated Apr 22, 2025
  • pxt-common-packages Public

    Common packages for Microsoft MakeCode editors

    TypeScript 101 MIT 120 0 19 Updated Apr 22, 2025
  • Tutel Public

    Tutel MoE: Optimized Mixture-of-Experts Library, Support DeepSeek FP8/FP4

    Python 803 MIT 96 42 1 Updated Apr 22, 2025
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