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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 183k 38.7k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.3k

  3. PowerToys PowerToys Public

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

    C# 131k 7.8k

  4. terminal terminal Public

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

    C++ 102k 9.2k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.5k 4.5k

Repositories

Showing 10 of 7689 repositories
  • fluentui Public

    Fluent UI web represents a collection of utilities, React components, and web components for building web applications.

    microsoft/fluentui’s past year of commit activity
    TypeScript 19,883 2,876 390 (5 issues need help) 275 Updated Mar 23, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,669 MIT 1,764 0 230 Updated Mar 23, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,378 MIT 6,447 1,163 552 Updated Mar 23, 2026
  • sre-agent Public

    Azure SRE Agent is an AI-powered reliability assistant that helps teams diagnose and resolve production issues, reduce operational toil, and lower mean time to resolution

    microsoft/sre-agent’s past year of commit activity
    Shell 60 MIT 24 55 1 Updated Mar 23, 2026
  • omnichannel-chat-widget Public

    Omnichannel Live Chat Widget UI Components offers a re-usable component-based library to help create a custom chat widget that can be connected to the Dynamics 365 Customer Service experience.

    microsoft/omnichannel-chat-widget’s past year of commit activity
    TypeScript 69 MIT 73 2 26 Updated Mar 23, 2026
  • teams.net Public

    a suite of packages used to build on the Teams Platform.

    microsoft/teams.net’s past year of commit activity
    C# 32 MIT 16 30 32 Updated Mar 23, 2026
  • agent-governance-toolkit Public

    AI Agent Governance Toolkit — Policy enforcement, zero-trust identity, execution sandboxing, and reliability engineering for autonomous AI agents. Covers 10/10 OWASP Agentic Top 10.

    microsoft/agent-governance-toolkit’s past year of commit activity
    Python 314 MIT 50 19 (8 issues need help) 3 Updated Mar 23, 2026
  • SynapseML Public

    Simple and Distributed Machine Learning

    microsoft/SynapseML’s past year of commit activity
    Scala 5,215 MIT 860 354 (10 issues need help) 28 Updated Mar 23, 2026
  • teams.py Public

    a suite of packages used to build on the Teams Platform.

    microsoft/teams.py’s past year of commit activity
    Python 36 MIT 16 12 (1 issue needs help) 14 Updated Mar 23, 2026
  • vscode-mssql Public

    Visual Studio Code SQL Server extension.

    microsoft/vscode-mssql’s past year of commit activity
    TypeScript 1,858 578 137 19 Updated Mar 23, 2026
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