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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 vscode Public

    Visual Studio Code

    TypeScript 184k 39.3k

  2. TypeScript TypeScript Public

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

    TypeScript 109k 13.4k

  3. PowerToys PowerToys Public

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

    C# 132k 7.9k

  4. terminal terminal Public

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

    C++ 103k 9.2k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.7k 4.6k

Repositories

Showing 10 of 7782 repositories
  • mattersim Public

    MatterSim: A deep learning atomistic model across elements, temperatures and pressures.

    microsoft/mattersim’s past year of commit activity
    Jupyter Notebook 530 MIT 79 15 4 Updated Apr 21, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 184,087 MIT 39,304 5,000+ (501 issues need help) 1,774 Updated Apr 21, 2026
  • semantic-kernel Public

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

    microsoft/semantic-kernel’s past year of commit activity
    C# 27,749 MIT 4,562 365 123 Updated Apr 21, 2026
  • MAPIStubLibrary Public
    microsoft/MAPIStubLibrary’s past year of commit activity
    C 37 MIT 20 2 0 Updated Apr 21, 2026
  • mfcmapi Public

    MFCMAPI

    microsoft/mfcmapi’s past year of commit activity
    C++ 963 MIT 166 42 0 Updated Apr 21, 2026
  • Deploy-Your-AI-Application-In-Production Public

    A deployment of a secure, extensible and integrated environment for running AI Foundry workloads in Production. It simplifies the process of including essential Azure services necessary to run mission-critical AI applications and adhere to Microsoft Well Architected Framework recommendations.

    microsoft/Deploy-Your-AI-Application-In-Production’s past year of commit activity
    PowerShell 199 MIT 150 0 2 Updated Apr 21, 2026
  • FastTrack Public

    GitHub home for Microsoft FastTrack

    microsoft/FastTrack’s past year of commit activity
    PowerShell 206 MIT 122 1 0 Updated Apr 21, 2026
  • aspire Public

    Aspire is the tool for code-first, extensible, observable dev and deploy.

    microsoft/aspire’s past year of commit activity
    C# 5,840 MIT 867 1,732 (4 issues need help) 145 Updated Apr 21, 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# 11,797 MIT 652 25 (13 issues need help) 27 Updated Apr 21, 2026
  • go-images Public

    Docker image packaging and publishing for the Microsoft build of Go

    microsoft/go-images’s past year of commit activity
    PowerShell 21 BSD-3-Clause 9 0 1 Updated Apr 21, 2026
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