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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 179k 36.5k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.1k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    C# 126k 7.5k

  4. terminal terminal Public

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

    C++ 101k 8.9k

  5. semantic-kernel semantic-kernel Public

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

    C# 26.8k 4.4k

Repositories

Showing 10 of 7416 repositories
  • amplifier Public
    microsoft/amplifier’s past year of commit activity
    Python 2,581 MIT 197 9 16 Updated Nov 29, 2025
  • agent-lightning Public

    The absolute trainer to light up AI agents.

    microsoft/agent-lightning’s past year of commit activity
    Python 9,028 MIT 723 51 (7 issues need help) 24 Updated Nov 29, 2025
  • kernel-memory Public

    Research project. A Memory solution for users, teams, and applications.

    microsoft/kernel-memory’s past year of commit activity
    C# 2,113 MIT 397 0 0 Updated Nov 29, 2025
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 9,942 MIT 5,662 1,057 486 Updated Nov 29, 2025
  • CsWin32 Public

    A source generator to add a user-defined set of Win32 P/Invoke methods and supporting types to a C# project.

    microsoft/CsWin32’s past year of commit activity
    C# 2,421 MIT 112 84 (2 issues need help) 14 Updated Nov 29, 2025
  • vs-validation Public

    Common input and integrity validation routines for Visual Studio and other applications

    microsoft/vs-validation’s past year of commit activity
    C# 129 29 3 4 Updated Nov 29, 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
    Python 98 83 116 5 Updated Nov 29, 2025
  • AzureLinuxVulnerabilityData Public

    Contains a regularly published and updated vulnerability database for Vulnerability Monitoring.

    microsoft/AzureLinuxVulnerabilityData’s past year of commit activity
    41 MIT 18 0 0 Updated Nov 29, 2025
  • ntosebpfext Public

    eBPF-For-Windows extension to provide access to Windows kernel functionality

    microsoft/ntosebpfext’s past year of commit activity
    C 32 MIT 20 7 5 Updated Nov 29, 2025
  • vs-streamjsonrpc Public

    The StreamJsonRpc library offers JSON-RPC 2.0 over any .NET Stream, WebSocket, or Pipe. With bonus support for request cancellation, client proxy generation, and more.

    microsoft/vs-streamjsonrpc’s past year of commit activity
    C# 885 164 54 (1 issue needs help) 5 Updated Nov 29, 2025
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