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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 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# 129k 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 7559 repositories
  • litebox Public

    A security-focused library OS supporting kernel- and user-mode execution

    microsoft/litebox’s past year of commit activity
    Rust 1,890 MIT 81 69 19 Updated Feb 11, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    PowerShell 10,230 MIT 6,066 1,117 680 Updated Feb 11, 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 1 Updated Feb 11, 2026
  • DiskANN Public

    Graph-structured Indices for Scalable, Fast, Fresh and Filtered Approximate Nearest Neighbor Search

    microsoft/DiskANN’s past year of commit activity
    Rust 1,692 MIT 380 117 (3 issues need help) 87 Updated Feb 11, 2026
  • vscode-mssql Public

    Visual Studio Code SQL Server extension.

    microsoft/vscode-mssql’s past year of commit activity
    TypeScript 1,832 571 134 18 Updated Feb 11, 2026
  • regorus Public

    Regorus - A fast, lightweight Rego (OPA policy language) interpreter written in Rust.

    microsoft/regorus’s past year of commit activity
    Rust 268 53 26 (10 issues need help) 28 Updated Feb 11, 2026
  • vscode-flake8 Public

    Linting support for python using the flake8 library.

    microsoft/vscode-flake8’s past year of commit activity
    Python 49 MIT 33 8 6 Updated Feb 11, 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 409 BSD-3-Clause 40 137 4 Updated Feb 11, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,446 MIT 1,638 0 168 Updated Feb 11, 2026
  • Agents-for-python Public

    This repository is for active development of the Microsoft 365 Agent SDK components for Python

    microsoft/Agents-for-python’s past year of commit activity
    Python 146 MIT 56 55 6 Updated Feb 12, 2026
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