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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# 27.8k 4.6k

Repositories

Showing 10 of 7781 repositories
  • agent-framework Public

    A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

    microsoft/agent-framework’s past year of commit activity
    Python 9,638 MIT 1,584 605 177 Updated Apr 21, 2026
  • WSL Public

    Windows Subsystem for Linux

    microsoft/WSL’s past year of commit activity
    C++ 31,925 MIT 1,687 904 56 Updated Apr 21, 2026
  • PhiCookBook Public

    This is a Phi Family of SLMs book for getting started with Phi Models. Phi a family of open sourced AI models developed by Microsoft. Phi models are the most capable and cost-effective small language models (SLMs) available, outperforming models of the same size and next size up across a variety of language, reasoning, coding, and math benchmarks

    microsoft/PhiCookBook’s past year of commit activity
    Jupyter Notebook 3,730 MIT 490 0 9 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# 5,839 MIT 867 1,730 (4 issues need help) 147 Updated Apr 21, 2026
  • OHCL-Linux-Kernel Public

    OpenHCL Linux Kernel

    microsoft/OHCL-Linux-Kernel’s past year of commit activity
    C 21 21 6 10 Updated Apr 21, 2026
  • vscode-common-python-lsp Public

    Common package for VSCode extensions exposing Python tools over LSP

    microsoft/vscode-common-python-lsp’s past year of commit activity
    Python 0 MIT 0 0 1 Updated Apr 21, 2026
  • apm Public

    Agent Package Manager

    microsoft/apm’s past year of commit activity
    Python 1,925 MIT 114 56 (3 issues need help) 32 Updated Apr 21, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    10,498 MIT 6,748 1,159 286 Updated Apr 21, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 184,057 MIT 39,292 5,000+ (501 issues need help) 1,765 Updated Apr 21, 2026
  • go Public

    The Microsoft build of Go is a modified version of Go that can build FIPS compliant applications that satisfy internal Microsoft policies.

    microsoft/go’s past year of commit activity
    Go 415 BSD-3-Clause 41 136 4 Updated Apr 21, 2026
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