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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 182k 37.9k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.2k

  3. PowerToys PowerToys Public

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

    C# 130k 7.7k

  4. terminal terminal Public

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

    C++ 102k 9.1k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.2k 4.5k

Repositories

Showing 10 of 7571 repositories
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,238 MIT 6,081 1,102 485 Updated Feb 14, 2026
  • dcp Public

    Developer Control Plane API server and CLI.

    microsoft/dcp’s past year of commit activity
    Go 144 MIT 8 33 3 Updated Feb 14, 2026
  • amplifier-bundle-containers Public

    Containers bundle for the Amplifier project

    microsoft/amplifier-bundle-containers’s past year of commit activity
    Python 0 0 1 0 Updated Feb 14, 2026
  • testfx Public

    This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

    microsoft/testfx’s past year of commit activity
    C# 986 MIT 292 197 22 Updated Feb 14, 2026
  • RD-Agent Public

    Research and development (R&D) is crucial for the enhancement of industrial productivity, especially in the AI era, where the core aspects of R&D are mainly focused on data and models. We are committed to automating these high-value generic R&D processes through R&D-Agent, which lets AI drive data-driven AI. 🔗https://aka.ms/RD-Agent-Tech-Report

    microsoft/RD-Agent’s past year of commit activity
    Python 11,138 MIT 1,283 69 66 Updated Feb 14, 2026
  • CsWinRT Public

    C# language projection for the Windows Runtime

    microsoft/CsWinRT’s past year of commit activity
    C# 621 MIT 123 216 22 Updated Feb 14, 2026
  • opensource.microsoft.com Public

    This is the source code to the mostly-static Microsoft Open Source site featuring projects, program information, and "get involved" pages. This site is published at opensource.microsoft.com, managed by the Microsoft Open Source Programs Office (OSPO).

    microsoft/opensource.microsoft.com’s past year of commit activity
    TypeScript 1,054 MIT 516 0 6 Updated Feb 14, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 181,684 MIT 37,935 5,000+ (529 issues need help) 1,123 Updated Feb 14, 2026
  • typescript-go Public

    Staging repo for development of native port of TypeScript

    microsoft/typescript-go’s past year of commit activity
    Go 24,094 Apache-2.0 827 214 (1 issue needs help) 79 Updated Feb 14, 2026
  • lisa Public

    LISA is developed and maintained by Microsoft, to empower Linux validation.

    microsoft/lisa’s past year of commit activity
    Python 323 MIT 225 35 (3 issues need help) 33 Updated Feb 14, 2026
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