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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
  • 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 19 Updated Feb 14, 2026
  • 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 1,101 488 Updated Feb 14, 2026
  • TypeScript Public

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

    microsoft/TypeScript’s past year of commit activity
    TypeScript 107,808 Apache-2.0 13,221 4,961 (912 issues need help) 493 Updated Feb 14, 2026
  • excel-to-kusto-datatable Public

    Excel add-in that converts highlighted cells to Kusto datatable syntax

    microsoft/excel-to-kusto-datatable’s past year of commit activity
    TypeScript 0 MIT 0 1 2 Updated Feb 14, 2026
  • AzureLinuxVulnerabilityData Public

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

    microsoft/AzureLinuxVulnerabilityData’s past year of commit activity
    42 MIT 18 0 0 Updated Feb 14, 2026
  • github-advisory-mcp Public

    MCP tools for semantic search in github/advisory-database

    microsoft/github-advisory-mcp’s past year of commit activity
    TypeScript 0 MIT 0 0 3 Updated Feb 14, 2026
  • WindowsAppSDK Public

    The Windows App SDK empowers all Windows desktop apps with modern Windows UI, APIs, and platform features, including back-compat support, shipped via NuGet.

    microsoft/WindowsAppSDK’s past year of commit activity
    C++ 4,428 MIT 412 321 (12 issues need help) 57 Updated Feb 14, 2026
  • security-devops-action Public

    Microsoft Security DevOps for GitHub Actions.

    microsoft/security-devops-action’s past year of commit activity
    JavaScript 142 MIT 58 23 2 Updated Feb 14, 2026
  • promptu Public

    Create shareable, clickable links that run AI prompts from anywhere directly in VSCode's Github Copilot Chat.

    microsoft/promptu’s past year of commit activity
    TypeScript 6 MIT 0 1 8 Updated Feb 14, 2026
  • ntosebpfext Public

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

    microsoft/ntosebpfext’s past year of commit activity
    C 37 MIT 20 7 4 Updated Feb 14, 2026
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