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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 180k 37.3k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.2k

  3. PowerToys PowerToys Public

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

    C# 128k 7.6k

  4. terminal terminal Public

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

    C++ 101k 9k

  5. semantic-kernel semantic-kernel Public

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

    C# 27k 4.4k

Repositories

Showing 10 of 7472 repositories
  • mcp Public

    Catalog of official Microsoft MCP (Model Context Protocol) server implementations for AI-powered data access and tool integration

    microsoft/mcp’s past year of commit activity
    C# 2,404 MIT 340 204 (26 issues need help) 55 Updated Jan 9, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,250 MIT 1,561 0 118 Updated Jan 9, 2026
  • trident Public

    Azure Linux servicing agent - security focused install, provisioning, and update

    microsoft/trident’s past year of commit activity
    Rust 19 MIT 15 14 16 Updated Jan 9, 2026
  • typespec Public
    microsoft/typespec’s past year of commit activity
    Java 5,522 MIT 329 998 (2 issues need help) 42 Updated Jan 9, 2026
  • dotnet-framework-docker Public

    The repo for the official docker images for .NET Framework on Windows Server Core.

    microsoft/dotnet-framework-docker’s past year of commit activity
    C# 755 MIT 350 13 0 Updated Jan 9, 2026
  • playwright Public

    Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

    microsoft/playwright’s past year of commit activity
    TypeScript 80,973 Apache-2.0 4,989 554 16 Updated Jan 9, 2026
  • onnxruntime Public

    ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator

    microsoft/onnxruntime’s past year of commit activity
    C++ 18,922 MIT 3,641 840 379 Updated Jan 9, 2026
  • App-Actions-On-Windows-Samples Public

    This repo provides some examples of how to build and consume App Actions on Windows.

    microsoft/App-Actions-On-Windows-Samples’s past year of commit activity
    19 MIT 3 1 1 Updated Jan 9, 2026
  • go-mssqldb Public Forked from denisenkom/go-mssqldb

    Microsoft SQL server driver written in go language

    microsoft/go-mssqldb’s past year of commit activity
    Go 384 BSD-3-Clause 555 66 (1 issue needs help) 17 Updated Jan 9, 2026
  • agentic-ai-lab-dotnet Public

    End-to-End Azure AI Foundry And Agents Development Laboratory

    microsoft/agentic-ai-lab-dotnet’s past year of commit activity
    Jupyter Notebook 1 MIT 3 0 0 Updated Jan 9, 2026
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