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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 173k 32.7k

  2. TypeScript TypeScript Public

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

    TypeScript 105k 12.8k

  3. PowerToys PowerToys Public

    Windows system utilities to maximize productivity

    C# 119k 7.1k

  4. terminal terminal Public

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

    C++ 98.4k 8.6k

  5. semantic-kernel semantic-kernel Public

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

    C# 24.8k 3.9k

Repositories

Showing 10 of 6869 repositories
  • lepton_jpeg_rust Public

    Port of DropBox Lepton compression to Rust

    microsoft/lepton_jpeg_rust’s past year of commit activity
    Rust 148 Apache-2.0 12 6 5 Updated May 28, 2025
  • Windows-Driver-Developer-Supplemental-Tools Public

    Supplemental open-source components for use in developing device drivers for Windows.

    microsoft/Windows-Driver-Developer-Supplemental-Tools’s past year of commit activity
    CodeQL 55 31 2 1 Updated May 28, 2025
  • finops-toolkit Public

    Tools and resources to help you adopt and implement FinOps capabilities that automate and extend the Microsoft Cloud.

    microsoft/finops-toolkit’s past year of commit activity
    PowerShell 396 MIT 144 195 (33 issues need help) 24 Updated May 28, 2025
  • UnifiedRedisPlatform.Core Public

    Unified Redis Platform is a solution for consolidating multiple Redis Caches to a single cluster. The cluster can be shared by multiple apps but provides proper isolation to each application. This is the client-side core SDK for Unified Redis Platform.

    microsoft/UnifiedRedisPlatform.Core’s past year of commit activity
    C# 13 MIT 1 1 10 Updated May 28, 2025
  • fluentui-apple Public

    UIKit and AppKit controls for building native Microsoft experiences

    microsoft/fluentui-apple’s past year of commit activity
    Swift 938 MIT 175 25 7 Updated May 28, 2025
  • onnxruntime-genai Public

    Generative AI extensions for onnxruntime

    microsoft/onnxruntime-genai’s past year of commit activity
    C++ 722 MIT 185 105 45 Updated May 28, 2025
  • simplechat Public

    Secure AI conversations with documents, video, audio, and more. Personal workspaces for focused context, group spaces for shared insight. Classify docs, reuse prompts, and extend with modular features.

    microsoft/simplechat’s past year of commit activity
    JavaScript 56 38 62 3 Updated May 28, 2025
  • recipe-tool Public

    Experimental tool for creating "recipes" to drive automations

    microsoft/recipe-tool’s past year of commit activity
    Python 7 MIT 6 0 0 Updated May 28, 2025
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 172,793 MIT 32,734 5,000+ (402 issues need help) 552 Updated May 28, 2025
  • tyger Public

    Remote signal processing.

    microsoft/tyger’s past year of commit activity
    Go 39 MIT 15 11 1 Updated May 28, 2025
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